| 1 |
Compton's effect is associated with |
- A. gamma rays
- B. Beta rays
- C. X rays
- D. Positive rays
|
| 2 |
If the kinetic energy of a free electron doubles, its de Broglie wavelength changes by the factor. |
- A. <b style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">√</b><span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">2</span>
- B. 1/<b style="font-family: arial, sans-serif; font-size: 16px; color: rgb(34, 34, 34);">√</b><span style="font-family: arial, sans-serif; font-size: 16px; color: rgb(34, 34, 34);">2</span>
- C. 2
- D. 1/2
|
| 3 |
The emission of electrons from metal surface when exposed to light is called: |
- A. Compton effect
- B. Pair production
- C. Photoelectric effect
- D. None of above
|
| 4 |
The principle regarding the dual nature of light was first discovered by |
- A. Heisenberg
- B. Compton
- C. J.J.Thomson
- D. De-Broglie
|
| 5 |
Which one of the following physical quantities change with relativistic speed? |
- A. Length
- B. Time
- C. Mass
- D. All of above
|
| 6 |
Earth orbital speed is. |
- A. 10 km/s
- B. 20 km/s
- C. 30 km/s
- D. 40 km/s
|
| 7 |
The dimensions of Plank's constant is same as that of. |
- A. Energy
- B. Power
- C. Acceleration
- D. Angular momentum
|
| 8 |
In the equation if f<sub>2</sub> > then |
|
| 9 |
Einstein was awarded Nobel prize in physics in |
- A. 1905
- B. 1911
- C. 1918
- D. 1921
|
| 10 |
The materialization of energy take place in the process of. |
- A. Photo electric effect
- B. Compton Effect
- C. Pair production
- D. Annihilationof matter
|
