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- 1. Multiple Choice
The bending of light ray is called -----------
reflection
refraction
- 2. Multiple Choice
The bending of light ray is due to change in speed of light in different media. State True or False.
True
False
- 3. Multiple Choice
When a light ray is travelling from denser medium to rarer medium, it -----------.
bends towards the normal
bends away from the normal
does not bend
- 4. Multiple Choice
When a light ray is incident normally from rarer medium to denser medium, it -------------.
bends towards the normal
bends away from the normal
does not bend
- 5. Multiple Choice
When a light ray travels from rarer medium to denser medium, it -----------.
bends towards the normal
bends away from the normal
does not bend
- 6. Multiple Choice
The measure of change in speed of light as it travels from one medium to another is called -----------
reflective index
refractive index
- 7. Multiple Choice
Unit of refractive index is
m/s
m/s2
no unit
- 8. Multiple Choice
The appearance of bend in pencil is due to -----------------
refraction of light ray
reflection of light ray
dispersion
- 9. Multiple Choice
------------ is also called Snells law.
The second law of refraction
The first law of refraction
The second law of reflection
- 10. Multiple Choice
What is the speed of light in air?
3 x 10 ^ 8 m/s
2 x 10 ^ 8 m/s
1 X 10 ^ 8 m/s
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