Question

i. What is Refraction ?

ii. The speed of light in water is 2.25×108m/s. If the speed of light in vacuum is

3×10^8 m/s , calculate the refractive index of water.​

Answer 1

Answer:

refraction is bending of light in a medium

Explanation:

Answer 2

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“Refraction is the change in the direction of a wave passing from one medium to another.”

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Speed of light in vacuum = 3.0 x 108m/s

Speed of light in water = 2.25 x 108m/s

Refractive index of water = ?

We know that,

Refractive index of water = speed of light in vacuum/speed of light in water

Refractive index of water = 3 x 108/2.25 x 108 = 1.33

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