CLASS-XII

BIOLOGY

Q.1 Draw well labelled diagrams of the followings-

a) Cellular structure of anther

b) Development of pollen grains from microspore

c) Megasporogenesis

d) Sectional view of semineferous tubule

e) Structure of sperm

f) Menstrual cycle

g) Structure of ovary

Q.2 Explain co dominance with an example?

Q. 3 Explain mohybrid and dihybrid cross by punnet square method?

Q.4 Draw chart on sex determination in:-

a) Human being

b) Birds

c) Insects

d) Honey bee

Q.5 Make pictorial project with explanation on the followings:-

a) Griffith experiment

b) Harshey and Chase experiment

c) Meselson and Stahl experiment

d) Salient features of human genome

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PHYSICS

Chapter – 1 : Electric Charges and Fields

Theory Based Questions:

Q1. (a) State Coulomb’s law of force between charges at rest. Express the same in SI units.

(b) Name and define the SI unit of charge.

(c) Write Coulomb’s law in vector form. What is the importance of expressing it in vector

form?

Q2. Define dielectric constant of a medium in terms of force between electric charges, electric

field & electrical permittivity.

GURU HARKRISHAN PUBLIC SCHOOL VASANT VIHAR NEW DELHI

HOLIDAYS HOME WORK - 2018-19

Q3. Define electric field intensity and derive an expression for it at a point on the axial line of a

dipole. Also determine its direction.

Q4. Define electric dipole moment. Derive an expression for the electric field intensity at any

point along the equatorial line of an electric dipole.

Q5. (a) Derive an expression for the torque acting on an electric dipole, which is held in uniform

electric field, when the axis of the dipole makes an angle with the electric field. Hence

define electric dipole moment.

(b) What happens when an electric dipole is held in a non-uniform electric field? What will

be the force and the torque when the dipole is held parallel or antiparallel to the electric

field?

Q6. Sketch the lines of force of

(i) a point charge q > 0,

(ii) a point charge q < 0,

(iii) an electric dipole or two equal and opposite charges separated by a small distance,

(iv) two equal positive charges placed small distance apart in air, and

(v) a positively charged plane conductor.

Q7. State Gauss’s theorem in electrostatics. Using this theorem, derive an expression for the

electric field intensity due to an infinitely long, straight wire of linear charge density

.

Q8. (a) Define electric flux.

(b) A point charge is placed at the centre of spherical Gaussian surface. How will electric

flux change if

(i) the sphere is replaced by a cube of same or different volume,

(ii) a second charge is placed near, and outside, the original sphere,

(iii) a second charge is placed inside the sphere, and

(iv) the original charge is replaced by an electric dipole?

Q9. Using Gauss Theorem derive an expression for the electric field intensity at a point near a

thin infinite plane sheet of charge density .

Q10. Apply Gauss theorem to calculate the electric field due to a uniformly charged spherical shell

at a point

(a) outside the shell, (b) on the shell and (c) inside the shell.

Draw a graph showing the variation of electric field E with distance r from the centre of a

uniformly charged thin spherical shell.

Numerical Questions:

Q1. Which is bigger – a coulomb or a charge on an electron? How many electronic charges form

one coulomb of charge?

Q2. A charge q is placed at the centre of the line joining two equal charges Q. Show that the

system of three charges will be in equilibrium if q = – Q/4.

Q3. Two similar balls each having mass m and charge q are hung from a silk thread of length l,

prove that equilibrium separation

3/1

0

2

2

mg

lqx

when each thread makes a small angle with the vertical.

Q4. Two small spheres each having mass m kg and charge q coulomb are suspended from a point

by insulating threads each l metre long but of negligible mass. If is the angle, each thread

makes with the vertical when equilibrium has been attained, show that

0

222 ε 4π tanθθ sin mgl 4q

Q5. Two point charges q1 = + 0.2C and q2 = + 0.4 C are placed 0.1 m apart. Calculate the electric

field at (a) the midpoint between the charges. (b) a point on the line joining q1 and q2 such

that it is 0.05 m away from q2 and 0.15 m away from q1.

Q6. ABCD is a square of side 5m. Charges of +50 C, – 50 C and + 50 C are placed at A, C and D

respectively. Find the resultant electric field at B.

Q7. Electric field in is directed along + X direction and given by

BAxEx

25 , where E is in 1NC and x is in metre, A and B

are constants with dimensions. Talking A = 10 1NC 1m and

B = 5 1NC , calculate

(i) the electric flux through the cube.

(ii) net charge enclosed within the cube.

Q8. Two small identical electrical dipoles AB and CD, each of

dipole moment ‘p’ are kept at an angle of 120o as shown in

Fig. What is the resultant dipole moment of this combination?

If this system is subjected to electric field ⃗⃗ ⃗⃗ ⃗⃗ directed

along + X direction, what will be the magnitude and direction of

the torque acting on this?

Q9. (a) Two point charges placed at a distance r in air exert a force

F on each other. At what distance will these charges experience the same force F in a

medium of dielectric constant K?

(b) A force F is acting between two charges placed some distance apart in vacuum. If a

brass rod is placed between these two charges, how does the force change?

Q10. (a) An infinite line charge produces a field of 9 at a distance of 2 cm.

Calculate the linear charge density.

(b) Two large, thin metal plates are parallel and close to each other. On their inner faces, the

plates have surface charge densities of opposite signs and of magnitude

. What is E (a) to the left of the plates, (b) to the right of the plates, and (c)

between the plates?

(c) A spherical rubber balloon carries a charge that is uniformly distributed over its surface.

As the balloon is blown up; how does E vary for points (i)inside the balloon, (ii) on the

surface of the balloon and (iii) outside the balloon?

Chapter – 2: Electrostatic Potential & capacitance

Theory Based Questions:

Q1. (a) Define electric potential. Derive an expression for the electric potential at a distance r

from a point charge q.

(b) Draw graphs showing the variations of (i) electrostatic potential V and (ii)

electrostatic field E with distance r from a charge q.

Q2. Derive an expression for the electric potential due to an electric dipole at any general point.

Q3. (a) What is an equipotential surface? Give an example.

(b) Show that the amount of work done in moving a test charge over an equipotential surface

is zero.

(c) Sketch equipotential surface for

(i) a positive point charge

(ii) two equal and opposite charges separated by a small distance.

(iii) two equal and positive charges separated by a small distance.

(iv) a uniform electric field.

Q4. Derive an expression for the potential energy of a dipole in a uniform electric field. Hence

discuss the conditions of its stable and unstable equilibrium.

Q5. (a) Derive an expression for the capacitance of a parallel plate capacitor.

(b) What are the factors on which the capacitance of a parallel plate capacitor depends?

Q6. Derive an expression for the energy stored in a parallel plate capacitor. Hence show that

electric field E is a source of energy with energy density

.

Q7. Two capacitors with capacity and are charged to potentials and respectively and

then connected in parallel. Calculate the common potential across the combination, the

charge on each capacitor, the electrostatic energy stored in the system and the change in the

electrostatic energy from its initial value.

Q8. (a) How does a dielectric develop a net dipole moment in an external electric field when it

has (i) non-polar molecules and (ii) polar molecules?

(b) Explain why the polarization of a dielectric reduces the electric field inside the dielectric.

Hence define dielectric constant.

Q9. (a) Define polarisation density. How is it related to the induced surface charge density?

(b) Define electric susceptibility. Deduce the relation between dielectric constant and electric

susceptibility.

Q10. What is a dielectric? A dielectric slab of thickness t is kept between the plates of a parallel

plate capacitor separated by distance d. Derive the expression for the capacitance of the

capacitor for t

Q8. Keeping the voltage of the charging source constant, what would be the percentage change in

the energy stored in a parallel plate capacitor if the separation between its plates were to be

decreased by 10%?

Q9. (a) Calculate the capacitance of the capacitor shown in the

figure.

(b) Find the capacitance of the infinite network between

points A and B.

Q10. Calculate equivalent capacitance between A & B. Also, calculate charge and voltage across

each capacitor.

(i) (ii)

(iii)

C1 = C2 = C4 = 5pF C3 = C5 = 10 pF

Chapter – 3 : Current Electricity

Theory Based Questions:

Q1. Give some important points of differences between electromotive force and potential

difference.

Q2. Define the terms drift velocity and relaxation time. Derive an expression for the drift velocity

of free electrons in a conductor in terms of relaxation time.

Q3.(a) Derive ohm’s law on the basis of the theory of electron drift.

(b) Derive an expression for the resistivity of a conductor in terms of number density of free

electrons and relaxation time.

Q4. Define internal resistance of a cell. Prove that RV

Er

1 , where R = external resistance.

Q5. Derive the condition for obtaining maximum current through an external resistance

connected across a series combination of cells.

Q6. Derive the condition for obtaining maximum current through an external resistance

connected across a parallel combination of cells.

Q7. Derive the condition for obtaining maximum current through an external resistance

connected across a mixed grouping of cells.

Q8. State Wheatstone bridge principle. Deduce the condition for which Wheatstone bridge is

balanced.

Q9. Define potential gradient. With the help of a circuit diagram, explain how a potentiometer

can be used to compare the emfs of two primary cells.

Q10. State the principle of a potentiometer. With the help of a circuit diagram, describe a method

to find the internal resistance of a primary cell.

Numerical Questions:

Q1. A current of 2mA is passed through a colour coded carbon resistor with first, second & third

rings of yellow, green and orange colours. What is the voltage drop across the resistor?

Q2.(a) A wire has a resistance of 16 . It is melted and drawn into a wire of half its length.

Calculate the resistance of the new wire. What is the percentage change in its resistance?

(b) The resistance of a wire is R ohms. What will be its new resistance if it is stretched to ‘n’

times its original length?

Q3. Two wires X, Y have the same resistivity, but their cross – sectional areas are in the ratio 2 :

3 and lengths in the ratio 1 : 2. They are first connected in series and then in parallel to a d.c.

source. Find out the ratio of the drift speeds of the electrons in the two wires for the two

cases.

Q4.(a) A set of n identical resistors, each of resistance R , when connected in series have an

effective resistance R & when connected in parallel, their effective resistance is Y .

Find relation between R, X and Y.

(b) A wire of uniform cross section and length has a resistance of 16 . It is cut into four

equal parts. Each part is stretched uniformly to length l and all the four stretched parts are

connected in parallel. Calculate the total resistance of the combination so formed. Assume

that stretching of wire does not cause any change in the density of its material.

Q5.(a) Calculate the current shown by the ammeter A in the circuit shown in figure.

(b) A battery of emf 10V is connected to resistance as shown in figure. Find the potential

difference between points A and B, R1 = R4 = 1 , R2 = R3 = 3 .

Q6. Calculate equivalent resistance between A & B.

(i) (ii)

Q7. (a) The reading on a high resistance voltmeter when a cell is connected across it is 2.2V.

When the terminals of the cell are also connected to a resistance of 5 , the voltmeter

reading drops to 1.8V. Find the internal resistance of the cell.

(b) A battery of emf ‘E’ & internal resistance ‘r’ gives a current of 0.5A with an external

resistor of 12 & a current of 0.25 A with an external resistor of 25 . Calculate internal

resistance of the cell & emf of the cell.

Q8. Three cells of emf 2V, 1.8V, 1.5V are connected in series. Their internal resistances are 0.05

, 0.7 & 1 respectively. If the battery is connected to an external resistance of 4 via

a very low resistance ammeter, what would be the reading in the ammeter?

Q9. Two identical cells of emf 1.5V each joined in parallel provide supply to an external circuit

consisting of two resistances of 17 each joined in parallel. A very high resistance

voltmeter reads the terminal voltage of cells to be 1.4V. Calculate the internal resistance of

each cell.

Q10. 12 cells, each of emf 1.5V & internal resistance 0.5 are arranged in m rows each

containing n cells connected in series. Calculate the values of n and m for which this

combination would send maximum current through an external resistance of 1.5 .

Q11.(a) Using kirchoff’s laws, calculate the potential difference across the 8 resistor shown in

the figure.

(b) Determine the current in each branch of the network shown in the figure.

(c) In the circuit shown in figure, E, F, G & H are cells

of emf 2V, IV, 3V and IV & their internal resistances

are 2 , 1 , 3 & 1 respectively. Calculate

(i) potential difference between B and D.

(ii) potential difference across the terminals of each of the cells G and H.

Q12. (a) A galvanometer of 15 resistance is connected across

BD. Calculate the current through the

galvanometer when a potential difference of 10V is

maintained across AC.

(b) Calculate equivalent resistance across points A and B.

Q13. (a) In the following circuit, a metre bridge is shown in its balanced state. The meter bridge

wire has a resistance of 1 ohm/cm. Calculate the value of

‘X’ and the current drawn from the battery of negligible

internal resistance.

(b) In a metre bridge, the null point is found at ‘l1’, from

A. If now a resistance ‘X’ is connected in parallel

with ‘S’, the null point occurs at ‘l2’ from A. Obtain

formula for X in terms of ,1l

2l and S.

Q14. (a) Two cells of emfs, E1 & E2 (E1 < E2) are connected as

shown in figure

When a potentiometer is connected between A & B, the balancing length of the

potentiometer wire is 300 cm. On connecting the same potentiometer between A & C,

the balancing length is 100cm. Calculate the ratio of E1 & E2.

Q15. In a potentiometer, a standard cell of emf 5V & of negligible resistance maintains a steady

current through the potentiometer wire of length 5m. Two primary cells of emfs E1 & E2 are

joined in series with (i) same polarity & (ii) opposite polarity. The combination is connected

through a galvanometer& a jockey to the potentiometer. The balancing lengths in the two

cases are found to be 350cm and 50cm respectively. (i) Draw the necessary circuit diagram.

(iii) Find the value of the emfs of the two cells.

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CHEMISTRY ALDEHYDE, KETONE, CARBOXYLIC ACID & AMINES Q 1. Account for the following :

(i) Ethanoic Acid is more acidic than Phenol (ii) Sodium biosulphite is used tp purify & separate aldehydes (iii) N- Methymethanamine is stronger base than Methanamine (iv) Ethanal gives silver mirror test with tollen reagent whereas acetophenone doesnot

(v) Hydrazones of aldehydes and ketones are not prepared in strongly acidic or strongly basic medium.

(vi) Aniline is weaker base then Ethanamine.

Q2 Write short notes on the following : (i). Aldol condensation. (ii) Cannizzaro reaction. (iii) Rosenmund reduction. (iv) HVZ reaction. (v) Hoffmann Bromamide reaction. (vi) Coupling reaction. (vii) Wolff Kishner reduction. Q3. How will you distinguish between the following pair of compounds :

(i) Ethanal & Benzaldehyde. (ii) Ethanoic acid & Phenol. (iii) Benzaldehyde & Propanone. (iv) Ethanal & Propanal. (v) Ethanamine & N-Methyethanamine.

Q4 How will you form :

(i) Benzoic acid from propyl benzene. (ii) Propane from Propanone. (iii) Propane-2-ol from Propanone. (iv) 4-Amino benzoic acid from Toluene. (v) Sulphanilic Acid from Nitrobenzene.

Q5. Write the mechanism involved in the formation of ester from Ethonoic acid and Methanol. Q6. Identify „A‟ , „B‟ & „C‟ in the following reactions :

HALOALKANES AND HALOARENES

Q1 Why is chloroform stored in dark coloured bottles which are completely filled?

Q2 How will you distinguish between the following compounds Chlorobenzene and

Chloroethane.

Q3 What are Freons?

Q4 During nucleophilic substitution reaction of alkyl halides with Potassium nitrite, Alkylnitrites

are formed but with silver nitrites, nitroalkanes are formed. Why?

Q5 Comment on the following observations

(a) The electrophilic substitution reaction in halorenes occur slowly and require more

drastic conditions as compared to those in benzene.

(b) Aryl halides are less reactive towards nucleophilic substituition reactions than alkyl

halides.

Q6 Arrange the compounds of each set in increasing order of reactivity towards

SN 2

(a) 2-Bromo-2 methylbutane, 1- Bromopentane, 2- Bromopentane.

(b) SN1

Q7. Write IUPAC names for the following:

(i) ( ii) (iii)

iv. v.

vi. Cl3-C-CH2-CH2-CH3

Q8. Account for the following

(a) Hydrolysis of 2-Bromobutane results in the formation of (±) Butan-2-ol.

(b) Grignard reagent should be prepared under anhydrous conditions

(c) p- Dichlorobenzene has higher melting point than its ortho or meta isomer.

Q9. Write short notes on

(a) Substituition Nucleophilic bi molecular mechanism(SN2)

(b) Finkelstein Reaction

(c) Friedel Craft Alkylation.

Q10. Explain the following terms

(a) Dextrorotatory

(b) Inversion of configuration

(c) Racemisation

Q11. (a) Identify “A” and “B” in the following reactions :

(i) CH3 – CH2OH + PCl5 ‘A’ + ‘B’ + HCl

(ii)

(iii)

(iv)

(b) How will you form :

(i) Iodobenzene from benzenediazonium chloride.

(ii) Toluene from chlorobenzene.

ALCOHOLS, PHENOLS and ETHERS

Q1 Predict appropriate set of reactants for the preparation of

Q2 Name the reagent used in oxidation of primary alcohol to carboxylic acid.

Q3 O-Nitrophenol is a weaker acid than p-nitrophenol. Why?

Q4 Write IUPAC names for the following

(i) ii) (iii)

iv)

Q5 Write the mechanism involved in acidic dehydration of Ethyl alcohol at 443K.

Q6. Give the structure and IUPAC names of the products expected from the following reactions

(a) Reaction of propene with B2H6and H2O2/OH-

(b) 2-Methyl propan-2-ol in presense of Cu at 573K

Q7 Account for the following.

(a) Ethanol is less acidic than Phenol.

(b) Anisole undergoes electrophilic substitution reactions more readily than

Benzene

(c) Chloro Benzene doesn’t give Williamson’s synthesis.

Q8. How will you distinguish between the following pair of compounds

(a) Propan-1-ol & 2-Methylpropan-2-ol

(b) Ethanol & Phenol

(c) Ethanol & Propan-1-ol

Q9 Write short notes on the following

(a) Riemer Tiemann Reaction

(b) Friedel Craft Acylation reaction of Anisole

(c) Williamson’s synthesis

Q10. Organic compound “A”( C6H6O) on recation with CO2/NaoH at 400K gives a product “B”which

on hydrolysis with dilute HCl, gives “C”. Accetylation of “C” with acetic anhyridegives “D”

which is a popular analgesic. What are the structures of A to D. Identify the name reaction

involved during this whole change.

Q11. (i) Identify “A” and “B” in the following reactions

(a) CH3-CHO + CH3-MgBr ‘A’ ’B’ + Mg(OH)Br

(b)

(c) CH3-CH2-O-C(CH3)3 + HI ‘A’ + ‘B’

(ii) How will you carry out the following conversions

(a) Phenol into 2,4,6- tribromophenol

(b) Aniline into phenol

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COMPUTER SCIENCE ( C++ ) Que 1. (a) What do you understand by class in C ++ ? (b) How are objects implemented in C ++ ? (c) How does a class enforce data-hiding, abstraction and encapsulation ? (d) What is the relationship of a class and its objects ? How is memory allocated to a class and its objects ? Que 2. (a) Write a short note on the significance of Constructors and Destructors in OOP classes. (b) What do you understand by a default constructor ? What is its role ? How is it equivalent to a constructor having default arguments ? (c) How many times is the copy constructor called in the following code ? Sample func( Sample u) { Sample v(u) ; Sample w = u ; return w ; } void main( ) { Sample x ; Sample y = func( x ) ; Sample z = func( y ) ; } Q 3. Write any five programs using classes( three programs with inline functions and two

programs with outline functions ) Q 4. Find the output of the following Program : #include #include void main( ) { char Mystring[ ] = “What@OUTPUT!” ; for ( intI = 0 ; Mystring[I] !=‟\0‟ ; I ++) { if isaplha(Mystring[I])) Mystring[I] = „*‟ ; else if (isupper(Mystring[I])) Mystring[I] = Mystring[I] + 1 ; else Mystring[I] = Mystring[I + 1] ; } cout

HOME SCIENCE

1. Plan at least five meals for a family and suggest few changes for a person suffering from different conditions like diarrhoea, jaundice, pregnant ,lactation, infants.

2. List and discuss 4/5 areas of agreement and disagreement of self with

1.mother 2.siblings 3.father 4.friends 5.teacher

3. Visit any two places /restaurant /business centre etc and evaluate its water portability and hygiene

4. Spend a day with an aged person and observe the needs and problems. Write a report

5. Visit various financial institution (bank ,post office ,UTI, LIC etc) and collect the latest information on the various schemes

6. Collect labels of different certification mark and compare them with an ideal label

7. Draw two labels each of I S I, FPO and AGMARK of any food stuff with all its requisites

8. Cut and collect clipping related to consumer education ,adulteration

9. Observe any malpractices related to weight and measures while buying things.

10. Collect pictures of cine stars of each decade and compare the change in fashion

11. Conduct a market survey on the textile fabric available in the market .evaluate them for durability, comfort and ease

12. Complete all the samples of stitching even and uneven stitching, running stitch, back stitch , inter locking , hemming , blind stitch, Fastener- button , button hole , hook and eye , press buttons. Patch work Seams- French Seam , run and fell seam

ENGLISH

Q.1 Cut advertisements from the „classified ads‟ of newspapers and paste them under the following heads

in your notebook:

(1)Situation Vacant

(2)Sales and Purchase (property/ vehicles/household goods)

(3)To Let

(4)Educational institutions/courses

(5)Missing persons/ pet animals

(6)Travel and tours

(7)Lost and found

Q.2 Select two interesting articles from the editorial page of any national daily and paste them in your

notebooks.

Q.3 Read the novel „Silas Marner‟ by George Eliot.

Q.4 Make notes of each of the chapter and write chapterwise summary in 80-100 words.

Q.5 Revise all the work done in the class.

ACCOUNTANCY

ACCOUNTING FOR PARTNERSHIP FIRMS

Fundamentals

Q.1 State the conditions under which capital balances may change under the system of a Fixed Capital

Account.

Q.2 A is partner in a firm. His capital as on Jan 01, 2007 was Rs. 60,000. He introduced additional capital of

Rs. 20000 on Oct 01 2007. Calculate interest on A‟s capital @ 9% p.a.

Q.3 Alka, Barkha and Charu are partners in a firm having no partnership agreement. Alka, Barkha and Charu

contributed Rs. 20,000, Rs. 30,000 and Rs. 1,00,000 respectively. Alka and Barkha desire that the

profit should be divided in the ratio of capital contribution. Charu does not agree to this. How will you

settle the dispute.

Q.4 A and B are partners in a firm without a partnership deed. A is an active partner and claims a salary of

Rs. 18,000 per month. State with reason whether the claim is valid or not.

Q.5 Chandar and Suman are partners in a firm without a partnership deed. Chandar‟s capital is Rs. 10,000

and Suman‟s capital is Rs. 14,000. Chander has advanced a loan of Rs. 5000 and claim interest @

12% p.a. State whether his claim is valid or not.

Q.6 R, S, and T entered into a partnership of manufacturing and distributing educational CD‟s on April 01,

2006. R looked after the business development, S content development and T financed the project. At

the end of the year (31-03-2007) T wanted an interest of 12% on the capital employed by him. The

other partners were not inclined to this. How would you resolve this within the ambit of the Indian

Partnership Act, 1932?

Q.7 A, B and C are partners in a firm. A withdrew Rs. 1000 in the beginning of each month of the year.

Calculate interest on A‟s drawing @ 6% p.a.

Q.8 A, B and C are partners in a firm, B withdrew Rs. 800 at the end of each month of the year. Calculate

interest on B‟s drawings @ 6% p.a.

Q.9 A, B and C are partners in a firm. They have omitted interest on capital @ 10 % p.a. for three years

ended 31st march 2007. Their fixed capitals on which interest was to be calculated through –out were

A Rs. 1,00,000

B Rs. 80,000

C Rs. 70,000

Give the necessary Journal entry with working notes.

Q.10 X, Y, and Z are partners sharing profits and losses in the ratio of 3:2:1. After the final accounts have

been prepared it was discovered that interest on drawings @ 5 % had not been taken into

consideration. The drawings of the partner were X Rs. 15000, Y Rs. 12,600, Z Rs. 12,000. Give the

necessary adjusting Journal entry.

Q.11 A, B and C are partners sharing profits and losses in the ratio of 3:2:1. Their fixed capitals are Rs.

1,50,000, Rs. 1,00,000 and Rs. 80,000 respectively. Profit for the year after providing interest on capital

was Rs. 60,000, which was wrongly transferred to partners equally. After distribution of profit it was

found that interest on capital provided to them @ 10% instead of 12%. Pass necessary adjustment

entry. Show your working clearly.

Q.12 Ravi and Mohan were partners in a firm sharing profits in the ratio of 7:5. Their respective fixed capitals

were Ravi Rs. 10,00,000 and Mohan Rs. 7,00,000. The partnership deed provided for the following:-

(i) Interest on capital @ 12% p.a ii) Ravi‟s salary Rs. 6000 per month and Mohan‟s salary Rs. 60000

per year. The profit for the year ended 31-03-2007 was Rs. 5,04,000 which was distributed equally

without providing for the above. Pass an adjustment Entry.

Q.13 Distinguish between fixed capital method and fluctuating capital method.

Q.14 A, B and C were partners in a firm having capitals of Rs. 60,000, Rs. 60,000 and Rs. 80,000

respectively. Their current account balances were A- Rs. 10,000, B- Rs. 5000 and C- Rs. 2000 (Dr.).

According to the partnership deed the partners were entitled to an interest on capital @ 5% p.a. C being

the working partner was also entitled to a salary of Rs. 6,000 p. a. The profits were to be divided as

follows:

(i) The first Rs. 20,000 in proportion to their capitals.

(ii) Next Rs. 30,000 in the ratio of 5:3:2.

(iii) Remaining profits to be shared equally.

During the year the firm made a profit of Rs. 1,56,000 before charging any of the above items.

Prepare the profit and loss appropriation A/C.

Q.15 A and B are partners sharing profits in proportion of 3:2 with capitals of Rs. 40,000 and Rs. 30,000

respectively. Interest on capital is agreed at 5 % p.a. B is to be allowed an annual salary of Rs. 3000

which has not been withdrawn. During 2001 the profits for the year prior to calculation of interest on

capital but after charging B‟s salary amounted to Rs. 12,000. A provision of 5% of this amount is to be

made in respect of commission to the manager. Prepare profit and loss appropriation account showing

the allocation of profits.

CHANGE IN PROFIT SHARING RATIO

(1) R & T are partners in a firm sharing profits in the ratio of 3:2. S joins the firm, R surrenders 1/4th of his share and T 1/5th of his share in favour of “S”. (2) A and B are partners sharing profits & losses in the ratio of 3:2. They admit C for 1/5th of his share from A and 4/5th share from B. (3) A & B are partners. They admit C for 1/4th share. In future, the ratio between A & B would be 2:1. Calculate new ratio & sacrificing ratio (4) X,Y and Z are partners in the ratio of 3:2:1. W joins the firm as a new partner for 1/6th share in profits. Z would retain his original share. Calculate new ratio & sacrificing ratio (5) A and B are equal partners. They admit C and D as partners with 1/5th and 1/6th share respectively. Calculate new ratio & sacrificing ratio.

(6) A and B are partners sharing profits/losses in the ratio of 3:2. C is admitted for 1/4th share. A and B decide to share equally in future. Calculate new ratio & sacrificing ratio. (7) X and Y shared profits in the ratio of 7:3. Z was admitted as a partner. X surrendered 1/7th of his share and Y 1/3rd of his share in favour of Z. Calculate new ratio & sacrificing ratio.

PREPARATION OF PROJECT REPORT As per the CBSE curriculum guidelines, The students of class XII are required to prepare and submit a Project work for the evaluation of Accountancy Practical. In this regard they are supposed to deal with following practical problem: A Comprehensive project starting with identification of financial transactions of a real business, recording them in journal entries,posting them to the ledger and preparation of Trial balance. Then prepare Trading and Profit and Loss Account and Balance Sheet on the basis of the prepared trial balance. Expenses, incomes and profit (loss), assets and liabilities are to be depicted using pie chart / bar diagram.

BUSINESS STUDIES

Q.1 Explain in brief the characteristics of Management.

Q.2. What are the objectives of Management. Discuss in brief.

Q.3. ”Anything minus Management is nothing”. In the light of this statement, discuss the importance of

Management.

Q.4. Illustrate the concept of Functional foremanship with the help of diagram.

Q.5. Explain how changes in political policies can put impact on business environment. Illustrate with

examples.

Q.6. XYZ Ltd. target is to produce 10,000 shirts per month at a cost of Rs.100 per shirt. The production

manager achieved the target at a cost of Rs, 90 per shirt, Do you think the „production manager‟ is

effective and efficient? Give reasons in support of your answer.

Q.7. In one of the principles of scientific management, Taylor emphasis that there should be equal division

of work and responsibility between workers and management and management should work almost

side by side with workers helping them.

(i) Identify the principle

(ii) State any other two scientific principles.

Q.8. How would you argue that the success of business enterprise is significantly influenced by its

environment.?

Q.9. What is meant by social environment? Give two examples how it effects our business organization.

Q.10. In a manufacturing unit , the purchase department purchased 50 tonnes of raw material for

production department. Although only 40 tonnes was needed by the production department. Due to

this, goods were over produced and not accepted by sales department. As a result, some goods

remain unsold.

(i) Which aspect of manage is lacking above? Name and explain it.

(ii) Explain any two points of importance of that aspect.

Q.11. In a factory, the tool box was kept under the table of every worker, whenever worker need tools he

had to bend to take out tool from tool box and keep it back after use. The newly appointed supervisor

observed it and suggested to keep a tool near every worker‟s chair where tool box can be placed, so

that workers do not waste their energy in bending again and again.

(i) Which technique of scientific management is used by new supervisor? Explain it.

(ii) State the objectives of the above study.

PROJECT WORK

As per CBSE Guidelines, prepare a project report on of the following topics assigned to you:

(i) Fayol’s principles of management.

(ii) Taylor’s scientific principles of management.

(iii) Business Environment :

Child labour

Women Empowerment

Packaging (shift from unpacked to packed, change in style of packaging)

Inclination towards GYM

Impact on business after Demonetization

Goods and Services Tax on products

Boom in Android

(iv) Marketing Management :

Jewellery

Stationary

Watches

Bakery items

Shoes, etc.

(vi) Consumer Rights (COPRA)

INFORMATIC PRACTICES

Q1. Explain the following terms :

(i) RAD

(ii) IDE

Q2. What are tokens ? Name and explain tokens supported by Java with examples .

Q3. What are data types ? Name the two types of data types supported by Java and explain

them with examples.

Q4. What are operators ? Name different types of operators supported by Java and explain

them in brief .

Q5. Differentiate between the following :

(i) Text field and label

(ii) Checkbox and radio button

(iii) List and combo box.

(iv) Entry control and Exit control loop

Q6. What is the use of Property window in Java?

Q7. Name the basic Text interaction methods or functions used in Java .Also explain their

use with the help of a programme.

Q8. What is the significance of break in Switch ..Case statement ?

Q9. Write any one programme using if..else statement .Also write the same program using

switch ...case statement.

Q10. Create atleast three GUI applications from each and every programming constructs of

Java (sequential construct, Selection construct, Iteration Construct).

Q11. Go through MY-SQL queries done in class XIth .Class test will be taken after the summer

break.

Q12. Write the full forms of the following :

(i)WLL

(i)CDMA

(iii)GSM

(iv)URL

( NOTE : ALL THE WORK GIVEN AS HOLIDAY HOMEWORK HAS TO BE DONE IN A SEPERATE

ASSIGNMENT NOTEBOOK .)

PUNJABI

1) ਸੂਫ਼ੀ ਕਾਵਿ ਅਤ ਗੁਯਭਵਤ ਕਾਵਿ ਨਾਰ ਜਾਣ। ਛਾਣ ਕਯਾਓ। (ਇਹਨਾਂ ਰਸ਼ਨਾਂ ਦ ਉੱਤਯ ੰਜ ਿਾਯੀ ਕਾੀ ਵਿਚ ਵਰਖ ਕ ਮਾਦ ਕਯ)

2) ੳ) ਵਕਸ ੰਜਾਫੀ ਅਖ਼ਫਾਯ ਦ ਸੰਾਦਕ ਨੰੂ ਵਚਿੱ ਠੀ ਵਰਖ ਕ ਦਿੱ ਸ ਵਕ ਸਕੂਰਾਂ ਵਿਿੱ ਚ ਕੀ ਸੁਧਾਯ ਕਯਨੇ ਚਾਹੀਦ ਹਨ।

ਅ) ੰਜਾਫੀ ਅਖਫਾਯ ਦ ਸੰਾਦਕ ਨੰੂ ਿੱਤਯ ਵਰਖ ਕ ਵਨਿੱਤ ਿਯਤੋਂ ਦੀਆ ਂਚੀਜਾਂ ਵਿਚ ਵਭਰਾਿਟ ਸੰਫੰਧੀ ਵਚੰਤਾ ਰਗਟ ਕਯ।

ੲ) ਿਧਿੱਦੀ ਭਵਹੰਗਾਈ ਦ ਵਨਭਨ ਿਯਗ ੈਂਦ ਰਬਾਿਾਂ ਫਾਯ ਅਖਫਾਯ ਦ ਸੰਾਦਕ ਨੰੂ ਿੱਤਯ ਵਰਖ।

3) ੁਯਾਣ ਪਯਨੀਚਯ ਿਚਣ ਫਾਯ ਇਸ਼ਵਤਹਾਯ ਵਤਆਯ ਕਯ।

4) ਅਾਾਣ ਸਕੂਰ ਵਿਿੱ ਚ ਹਣ ਿਾਰੀ ਬਾਸ਼ਣ। ਰਤੀਮਵਗਤਾ ਫਾਯ ਸੂਚਨਾ ਵਰਖ।

5) ਵਭਿੱ ਤਯ ਨੰੂ ਗਯਭੀਆਂ ਦੀ ਛੁਿੱ ਟੀਆ ਂਆਣ ਘਯ ਵਿਿੱ ਚ ਨਾਰ ਵਫਤਾਉਣ ਰਈ ਈ. ਭਰ ਵਰਖ।

6) ਜਭਾਤ ਵਿਿੱ ਚ ਕਯਿਾਇਆ ਵਗਆ ਸਾਯ ਕੰਭ ਦੀ ਦੁਹਯਾਈ ਕਯਨੀ ਹ।

7) ਸੀ.ਫੀ .ਐਸ .ਈ .ਦ ਇਸ ਿਯਹ ਦ ਰਸ਼ਨ ਤਿੱ ਯ ਵਿਚੋਂ ਵਿਆਕਯਣ ਿਾਰਾ ਬਾਗ ਕਾੀ ਵਿਿੱ ਚ ਕਯਕ ਆਣਾ ਹ।

HINDI

1 अपठित गद्यांश कोई - 5

2 अपठित कयव्यांश। कोई -5

3 पयाँच आलखे लललखए।

4 पयाँच फ़ीचर आलेख लललखए।

5 पयाँच कयययालयी-पत्र लललखए।

(क) समयचयर के सांपयदक को मोबयइल के कयरण बढ़ती दघुाटनयओं की ओर चचतय प्रकट करत ेहुए पत्र लललखए।

(ख) ददल्ली पठरवहन अलधकयरी को बस व्वस्थय में सधुयर लयन ेके ललय ेपत्र लललखए।

(ग ) वकृ्षयरोपण समयरोह कय लववरण दते ेहुए सांपयदक को पत्र लललखए।

( घ ) डेंग ूऔऱ मलठेरयय के बढ़त ेप्रकोप को दखेत ेहुए लचदकत्सयलयो में अपययाप्त लचदकत्सय सलुवधयओं की ओर ध्ययन आकर्षषत

करत ेहुए स्वयस््य लवभयग को पत्र लललखए।

(ण) तफूयन व बयढ़ पीलितों की आर्षथक सहययतय, खयन-पयन व दवयइयों के ललय ेगहृ मांत्रयलय मेंपत्र लललखय।े

6 लवतयन के शषे अध्ययय पढ़ कर प्रश्नों के उत्तर लललखय।े

7 दकसी एक लवषय पर पठरयोजनय कयया कीलजए।

8 प्रलतददन लहन्दी अख़बयर पदढ़य।े

POLITICAL SCIENCE

a) Read & Revise following chapters thoroughly : Ch. 1___4

b) Revise following maps & paste in your note book

Ch. 1__pg. no. 5 Ch.2___pg. no. 24 Ch.4___pg. no. 56

c) Revise following Cartoons :

Ch. 3____pg.no. 37 Ch.4_____pg.no. 55,56,57,59,60

ECONOMICS UNIT 1

1. Read the following statement carefully. Write true or false with reasons:

a) Problem of resource allocation would not arise if resources had no alternative uses b) micro economics does not deal with aggregates. d) positive statements are statements of truth. ) A point below PPC points to under utilisation of resources. f) Massive unemployment shifts PPC to the left.

2. Answer the following questions.

a) “Economics is about making choices in the presence of scarcity” Explain b) What are the different branches of economics and their fields of study? c) Are the following microeconomic studies or macroeconomic studies? Give reasons. 1) General price level 2)GDP 3)Rice production

d) Discuss the central problems of an economy

http://3____pg.no/http://ch.4_____pg.no/

e) Define opportunity cost and explain it with the help of an example. f) What does a PPC show? When will it shift? g) Explain the shape of PPC with the help of a numerical example and a diagram. How is it

related to increasing opportunity cost?

h) Draw a PPC when production is subject to : 1.decreasing opportunity cost 2.constant opportunity cost 3.increasing opportunity cost

i) 1) Do you think the actual level of output in in the Indian economy is less than its potential level?

2) Does it mean that the level of PPC could be higher than what it is now j) How will the following schemes by government affect the PPC of the economy? a. Make in India b. Skill India Mission c. Sarv Shiksha Abhiyan.

UNIT 2 CONSUMER’S EQUILIBRIUM AND DEMAND

Answer the following questions: 1. Explain the relation between TU and MU with the help of a schedule and diagram

2. Given the market price of a good ,how does a consumer decide as to how many units of that good to buy ?

3. Explain the following a) Budget set b) Budget line c)Indifference map

4. Explain two properties of Budget line.

5. Explain three properties of indifference curves.

6. A Consumer consumes only two goods X and good Y and is in equilibrium. Show that when price of good X rises,the consumer buy less of good X .Use Utility analysis

7. A consumer wants to consume two goods. The prices of the goods are Rs4 and Rs5 respectively. The consumer‟s income is Rs20.

8. (i)Write down the equation of the budget line.

9. (ii)How much of Good-1 can the consumer consume if she spends her entire income on that good?

10. A consumer consumes only two goods X and Y. Marginal utilities of X and Y are 3 and 4 respectively. Prices of X and Y are Rs 4 per unit. Is consumer in equilibrium? What will be further reaction of the consumer? Give reasons.

11. MRS tends to diminish because of the law of diminishing marginal utility. Comment.

12. If IC is not convex at the point of equilibrium, the consumer cannot reach the point of stable equilibrium. Comment.

13. Explain the inverse relationship between the price of a commodity and its demand

14. Why is more demanded at lower price?

15. How is law of demand derived from utility analysis?

16. Explain how the market demand curve is derived from individual demand curve

17. 'No good is inferior or normal' justify the statement giving examples.

18. Differentiate between change in quantity demanded and change in demand with the help of Schedule and diagram

19. Fall in price of a commodity always leads to expansion in demand. Comment.

20. Explain the effect of the following on demand curve of a commodity

a)Fall in price of substitute goods b)Fall in price of complementary goods c)Fall in income of consumer d)An unfavorable change in taste and preference of consumer.

21. Air fares fall as more and more airlines come into competition. How will the given news affect the demand curve of rail transport in the country? Show Diagram

22. .Explain the following: (a) Price elasticity of demand is a pure number. (b) Price elasticity of demand is a negative number.

23. Explain by giving examples how do the following determine price elasticity of demand

24. State with reasons, whether the following items will have elastic or inelastic demand.

Matchbox; (ii) Coke; (iii) Medicines; (iv) Electricity. 25. What factor causes a decrease in demand of a commodity?

26. At Rs.5 per unit, consumer buys 40 units of a commodity and the Ed is (-2). How much he buy if price reduce to Rs.4 per unit?

27. The demand curve of a good is a rectangular hyperbola. When its price falls by 20%,its quantity rises by 80 units. Calculate the original demand.

28. The price elasticity of demand of good x is half the price elasctity of demand of good y. A 25% rise in the price of good y reduces is demand from 400 to 300 units. Calculate percentage change in demand of good x when its price falls from Rs.10to 8 per unit

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