| 1 |
The index of refraction depends on: |
- A. The focal length
- B. The speed of light
- C. the image distance
- D. The object distance
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| 2 |
Which of the following quantities is not change during refraction of light? |
- A. Its direction
- B. Its speed
- C. its frequency
- D. Its wavelength
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| 3 |
The minimum value of angle of deviation is called: |
- A. Minimum angle
- B. incident angle
- C. angle of minimum deviation
- D. None of these
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| 4 |
Half of radius of curvature is called: |
- A. Focal length
- B. Principal focus
- C. Axis
- D. None of these
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| 5 |
Snell's law is stated as: |
- A. Sin i / sin r = n1/n2
- B. sin i / sin r = n2/n1
- C. sin r / sin i = n2/n1
- D. sin r / sin i = 2n2/n1
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| 6 |
The mirror whose inner surface is reflecting is called: |
- A. Concave mirror
- B. Convex mirror
- C. Miroor
- D. Lens
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| 7 |
Angle opposite to the base of triangle of prism is called: |
- A. angle of incidence
- B. angle of refraction
- C. angle of prism
- D. emerging angle
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| 8 |
Power of lens is: |
- A. q/p
- B. 1/q
- C. 1/p
- D. 1/f
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| 9 |
An object is 14 cm is front of a convex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirror? |
- A. 4.1 cm
- B. 8.2 cm
- C. 9.9 cm
- D. 20 cm
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| 10 |
The distance of the object from the mirror is represented by : |
|