Q.
The wavelength of sodium light in air is 5890A0. The velocity of light in air is 3×108 ms−1. The wavelength of light in a glass of refractive index 1.6, would be close to
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a
5890A0
b
3680A0
c
9424A0
d
15078A0
answer is B.
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Detailed Solution
Frequency does not depend on mediumμ1μ2=V2V1=λ2fλ1f⇒ μ2λ2=λ1μ1⇒μ2=58901.6=3681.25A0
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