Question

Speed of light in vacuum is C and refractive index is 3/2 then speed of light in that medium is
A)3C/2
B)2C/3
C)5C/7
D)3C/5

Answer 1

Answer:

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Answer 2

Answer:

B)2C/3

Explanation:

Refractive index(n)=speed of light in vacuum(C)/speed of light in medium(V)

n=C/V

3/2=C/V

3×V=2×C

V=2C/3(OPTION B)

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