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Prateek Asked :

25-09-2021 Electromagnetic Theory

Q. The refractive index of water will be

A. 1
B. 2.66
C. 5
D. 1.33

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Dapzoi Verified
Commented on 2021-09-25 11:06:48 (IST)
Answer: D

Explanation: The velocity of light in water as medium will be 2.25 x 10^8. On substituting for the speed of light, we get refractive index as n = 3/2.25 = 1.33(no unit).