The Birth of Modern Physics

The 1890s

1895    Roentgen      X-­‐Rays  

1896    Becquerel    Radioac:vity          

1897    Thomson      The  Electron  

               

               

                                                       

               

                                                                 

1895    Roentgen      X-­‐Rays  

1896    Becquerel    Radioac:vity          

1897    Thomson      The  Electron  

1900    Planck      Blackbody  Radia:on      

               

                                                       

               

                                                                 

1895    Roentgen      X-­‐Rays  

1896    Becquerel    Radioac:vity          

1897    Thomson      The  Electron  

1900    Planck      Blackbody  Radia:on      

             Rela:vity  

             Brownian  Mo:on  1905    Einstein                    

             Photoelectric  Effect  

             E  =  mc2  

                                                             

1895    Roentgen      X-­‐Rays  

1896    Becquerel    Radioac:vity          

1897    Thomson      The  Electron  

1900    Planck      Blackbody  Radia:on      

             Rela:vity  

             Brownian  Mo:on  1905    Einstein                    

             Photoelectric  Effect  

             E  =  mc2  

                                                       

1912    Rutherford    Rutherford  ScaLering  

1895    Roentgen      X-­‐Rays  

1896    Becquerel    Radioac:vity        Atomic  Physics  

1897    Thomson      The  Electron  

1900    Planck      Blackbody  Radia:on    Quantum  Physics  

             Rela:vity  

             Brownian  Mo:on  1905    Einstein                  Rela3vity  

             Photoelectric  Effect  

             E  =  mc2  

                         Nuclear  Physics  &                            High  Energy  Physics  

1912    Rutherford    Rutherford  ScaLering  

pope

Stamp

• J.J. Thomson discovered that cathode rayswere:-

A. very heavy positively charged particles

B. very light positively charged particles

C. very heavy negatively charged particles

D. very light negatively charged particles

E. massless electromagnetic radiation

Quickuiz

• J.J. Thomson discovered that cathode rayswere:-

A. very heavy positively charged particles

B. very light positively charged particles

C. very heavy negatively charged particles

D. very light negatively charged particles

E. massless electromagnetic radiation

Quickuiz

pope

Stamp

• Wihelm Roentgen discovered X-rays thatwere found to be:-

A. very heavy positively charged particles

B. very light positively charged particles

C. very heavy negatively charged particles

D. very light negatively charged particles

E. massless electromagnetic radiation

Quickuiz

• Wihelm Roentgen discovered X-rays thatwere found to be:-

A. very heavy positively charged particles

B. very light positively charged particles

C. very heavy negatively charged particles

D. very light negatively charged particles

E. massless electromagnetic radiation

Quickuiz

An increase in the voltage of an X-ray tuberesults in some X-rays of:-

A. a higher velocity

B. a longer wavelength

C. a lower velocity

D. a shorter wavelength

E. a lower frequency

Quickuiz

An increase in the voltage of an X-ray tuberesults in some X-rays of:-

A. a higher velocity

B. a longer wavelength

C. a lower velocity

D. a shorter wavelength

E. a lower frequency

Quickuiz

pope

Stamp

Ernest Rutherford and co-workers discoveredthat α rays were:-

A. very heavy positively charged particles

B. very light positively charged particles

C. very heavy negatively charged particles

D. very light negatively charged particles

E. massless electromagnetic radiation

Quickuiz

Ernest Rutherford and co-workers discoveredthat α rays were:-

A. very heavy positively charged particles

B. very light positively charged particles

C. very heavy negatively charged particles

D. very light negatively charged particles

E. massless electromagnetic radiation

Quickuiz

pope

Stamp

Transmutation of the elements is performedfrequently at the following location on theMSU campus:-

A. the Administration building

B. Biomedical Physical Sciences building

C. Spartan stadium

D. Breslin

E. the NSCL

Quickuiz

Transmutation of the elements is performedfrequently at the following location on theMSU campus:-

A. the Administration building

B. Biomedical Physical Sciences building

C. Spartan stadium

D. Breslin

E. the NSCL

Quickuiz

National Superconducting Cyclotron Laboratory