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Question: A light wave has a frequency of \(5 \times 10 ^ { - 7 }\) meters in a medium. The refractive index o...

A light wave has a frequency of 5×10−75 \times 10 ^ { - 7 } meters in a medium. The refractive index of the medium is

A

1.5

B

1.33

C

1.0

D

0.66

Answer

1.5

Explanation

Solution

μ=cv=cvλ=3×1084×1014×5×10−7=1.5\mu = \frac { c } { v } = \frac { c } { v \lambda } = \frac { 3 \times 10 ^ { 8 } } { 4 \times 10 ^ { 14 } \times 5 \times 10 ^ { - 7 } } = 1.5