Question

Light enters from air to water having refractive index 4/3 find the speed of light in water.The speed of light in vacuum is 3 multiply by 10 raise to 8 ms

Answer 1

Here is your answer ⤵⤵⤵

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

= 2 25× 2.25*100000000m/sec

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