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The refractive index of a certain glass ...

The refractive index of a certain glass is 1.5 for light whose wavelength in vacuum is 6000 Å. The wavelength of this light when it passes through glass is

A

4000 Å

B

6000 Å

C

9000 Å

D

15000 Å

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda prop (1)/(n) rArr (1)/(n) rArr (lambda_(a))/(lambda_(m)) = (n_(m))/(n_(a)) `
`rArr " " lambda_(m) = (6000)/(1.5) = 4000 Å.`
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