Question

The refractive index of a medium is 3. If the speed of light in vacuum is 3x10^8m/s. find the speed of light in the medium

Answer 1

Explanation:

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Answer 2

Answer:

GIVEN

Refractive index in a medium= 3

Speed of light in vaccum= 3 × 10⁸m/s

TO FIND

The speed of light in that medium (v)

SOLUTION

Refractive index = Speed of light in vaccum / speed of light in the medium

3 = 3 × 10⁸m/s / v

v = 3 × 10⁸m/s /3

v = 10⁸m/s

So, the speed of light in that medium is 10⁸m/s

Hence, solved.