Optics Question 745

Question: The speed of light in air is 3×108m/s . What will be its speed in diamond whose refractive index is 2.4

[KCET 1993]

Options:

A) 3×108

m/s

B) 332 m/s

C) 1.25×108 m/s

D) 7.2×108

m/s

Show Answer

Answer:

Correct Answer: C

Solution:

v=cμ=3×1082.4=1.25×108m/s

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