| 1 |
Speed of light is denoted by. |
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| 2 |
There are ......... types of reflection |
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| 3 |
Through which of the following the light travels the fastest. |
- A. Prism
- B. Water
- C. Air
- D. Vacuum
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| 4 |
Angle of incidence is equal to he angle of reflection ,It is first law of. |
- A. Refraction
- B. Dispersion
- C. Reflection
- D. Diffraction
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| 5 |
Speed of light through air is about. |
- A. 300000 km/s
- B. 250000 km/s
- C. 225000 km /s
- D. 200000 km /s
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| 6 |
Which of the following type of mirror can form an image larger than the object. |
- A. Plane
- B. Convex
- C. Concave
- D. All of these
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| 7 |
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
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| 8 |
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
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| 9 |
-------------------- is/are used to coat the backside of the mirror. |
- A. Silver
- B. Copper
- C. Aluminium
- D. Silver and Aluminium
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| 10 |
What is the colour of an object that absorb all the light that hits it. |
- A. Black
- B. Green
- C. White
- D. Red
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