Optics Question 770

Question: Velocity of light in a medium is $ 1.5\times 10^{8}m/s. $ Its refractive index will be

[Pb. PET 2000]

Options:

A) 8

B) 6

C) 4

D) 2

Show Answer

Answer:

Correct Answer: D

Solution:

$ \mu =\frac{c}{v} $

$ =\frac{3\times 10^{8}}{1.5\times 10^{8}} $ = 2.



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