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
|