Question

A ruy of light strikes the surface of water such that its speed in water is 2.25 x 108 m's. In
absolute refractive index of water is 4:3. find the speed of light in air. Refractive index of water
with respect to air is 1.33 and that of diamond is 2 12 In which medium does the light move
faster, water or diamond?
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Answer 1

Answer:

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Speed of light in vacuum = 3.0×10

8

m/s

Speed of light in water = 2.25×10

8

m/s

Refractive index of water = ?

We know that

Refractive index of water =

Speed of light in water

Speed of light in vacuum

Refractive index of water =

2.25×10

8

3×10

8

=1.33