| 1 |
Angle of incidence is equal to he angle of reflection ,It is first law of. |
- A. Refraction
- B. Dispersion
- C. Reflection
- D. Diffraction
|
| 2 |
When light falls on transparent object such as air, water, glass ,etc. It passes through them unchanged, it is called. |
- A. Absorption
- B. Reflection
- C. Transmission
- D. Diffusion
|
| 3 |
How is the angle of incidence related to the angle of reflection. |
- A. It is greater
- B. It is smaller
- C. It is same
- D. None of these
|
| 4 |
Speed of light through glass is about. |
- A. 300000 km /s
- B. 250000 km/s
- C. 225000 km /s
- D. 200000 km/s
|
| 5 |
Speed of light through water is about. |
- A. 300000 km/s
- B. 250000 km/s
- C. 225000 km /s
- D. 200000 km/s
|
| 6 |
The image formed by a convex mirror is. |
- A. Real and upright
- B. Real and inverted
- C. Virtual and upright
- D. Virtual and inverted
|
| 7 |
-------------------- is/are used to coat the backside of the mirror. |
- A. Silver
- B. Copper
- C. Aluminium
- D. Silver and Aluminium
|
| 8 |
Speed of light is denoted by. |
|
| 9 |
Through which of the following the light travels the fastest. |
- A. Prism
- B. Water
- C. Air
- D. Vacuum
|
| 10 |
What happens when light hits a shiny or smooth surface. |
- A. It is disappeared
- B. It is refracted
- C. It is absorbed
- D. It is reflected
|
