rao iit academy jee - main level official online exam 2018 … · 2018-04-24 · official online...

OFFICIAL ONLINEEXAM 2018

Solutions

1. Di�iculty : Easy

Topics :

Current electricity,

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Rao IIT Academy JEE - Main Level

RAO IIT ACADEMY / JEE - MAIN / 2018 / ONLINE / SOLUTIONS

2.Di�iculty : Easy

Topics :

Surface tension,




Topics :

Elasticity,


Topics :

Physics,



5. Di�iculty : Medium

Topics :

SOUND,


Topics :

Circular motion,

In the frame of disc :




Topics :

Electromagnetic Induction( EMI ),

When terminal velocity is acquired net force on the rod becomes zero.

8. Di�iculty : Di�icult

Topics :

Modern Physics,

is independent of

Energy



9.Di�iculty : Medium

Topics :

Current electricity,


Topics :

Heat and thermodynamics,


Topics :

MAGNETISM,




Topics :

Units,Dimensions & Error analysis,


Topics :

Ray Optics,

First data satisfies above relation.


Topics :

Rotational Mechanics,




Topics :

Simple harmonic motion,

(1) (parabola)

(2)

(3)

16. Di�iculty : Di�icult

Topics :

Thermodynamics,

Assuming (in series)




Topics :

Capacitors,


Topics :

Collisions,

Elastic collision between two masses leads to such a situation.


Topics :

Electrostatics,




Topics :

HEAT,


Topics :

Semiconductors,

0 0 1 0 0 1

0 1 1 0 1 1

1 0 0 0 1 1

1 1 0 1 0 1




Topics :

Capacitors,

Equivalent capcitance of and

Common potential di�erence to and combined.

Charge of system


Topics :

Electromagnetic waves,

Here




Topics :

Kinematics,


Topics :

Atomic nucleus,




Topics :

Electromagnetic Induction( EMI ),

Flux

e.n.f

So


Topics :

Modern Physics,

is same so

is also same


Topics :

Physics,

By cross checking




Topics :

Rotational Mechanics,

A�er collision centre of mass ramain at

Using conservation of angular momentum

.....(1)

when

From (1)

or




Topics :

Friction,

For downward motion

or

For upward motion

or



rao iit academy jee - main level official online exam 2018 … · 2018-04-24 · official online...

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