| 1 |
The Compton effect is associated with |
- A. X-rays
- B. y-rays
- C. Positive rays
- D. ß-rays
|
| 2 |
The energy of photon is givne by |
- A. mv2/2
- B. hf
- C. Va e
- D. mac<sup>1</sup>
|
| 3 |
Potassium Cathodes in photocell emit electrons for a light. |
- A. Visible
- B. Infra red
- C. Ultra violet
- D. X rays
|
| 4 |
In Compton effect the photon behaves as a. |
- A. Wave
- B. Particle
- C. Nucleon
- D. Both a and b
|
| 5 |
In an nihilation emitted photons moves in opposite directions to conserve. |
- A. Mass
- B. Charge
- C. Energy
- D. Momentum
|
| 6 |
Albert Einstein got noble prize in: |
- A. 1926
- B. 1921
- C. 1918
- D. 1931
|
| 7 |
Joule second is the unit of. |
- A. Energy
- B. Wein's constant
- C. Planck's constant
- D. Boyle's law
|
| 8 |
1 kg mass will be equivalent to energy. |
- A. 9 x 10<sup>8</sup> J
- B. 9 X 10<sup>12</sup> J
- C. 9 X 10<sup>16</sup> J
- D. 9 X 10<sup>19</sup> J
|
| 9 |
When platinum is heated is become dull red at: |
- A. 900°C
- B. 500°C
- C. 800°C
- D. 1100°C
|
| 10 |
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
|