Question

The refractive index of water is 4/3. What is the speed of light in water

Answer 1

Answer:

we know that refractive index =

speed of light in vacuum

speed of light in that medium

So

4/3 = 3*10^8

speed of light in water(X)

X = 3*10^8 *3

4

X = 9 *10^8

4

X= 2.25* 10^8

speed of light in water is 2.25 *10^8 m/ s

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REGARDS