1 |
Through which of the following the light travels the fastest. |
- A. Prism
- B. Water
- C. Air
- D. Vacuum
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2 |
Speed of light is denoted by. |
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3 |
Speed of light through water is about. |
- A. 300000 km/s
- B. 250000 km/s
- C. 225000 km /s
- D. 200000 km/s
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4 |
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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5 |
Which type of image is formed in Plane Mirror. |
- A. Real
- B. Real and virtual
- C. Virtual
- D. None of these
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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
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7 |
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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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 |
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
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10 |
-------------------- is/are used to coat the backside of the mirror. |
- A. Silver
- B. Copper
- C. Aluminium
- D. Silver and Aluminium
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