TRB MODEL QUESTIONS FOR PHYSICS
| 36. |
The unit of power of the lens is |
| |
- A. metre
- B. kilometre
- C. dioptre
- D. angstrom
|
| 37. |
Kepler’s first law of planetary motion is also called |
| |
- A. law of periods
- B. law of areas
- C. law of orbits
- D. law of distances
|
| 38. |
The air resistance on freely falling body depends upon |
| |
- A. shape
- B. density
- C. friction
- D. pressure
|
| 39. |
The smallest planet in the solar system is |
| |
- A. Earth
- B. Mars
- C. Pluto
- D. Mercury
|
| 40. |
The splitting of different colours in a prism is called |
| |
- A. diffraction
- B. dispersion
- C. polarisation
- D. interference
|
