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A beam of light propagation through a me...

A beam of light propagation through a medium -1 and falls onto another medium-2, at an angle `alpha_(1)` as shown. After that it propagates in medium -2 at an angle `alpha_(2)` as shown. The light's wavelength medium-1 is `lambda_(1)`. What is the wavelength of light medium -2 ?

A

`(sinalpha_(1))/(sinalpha_(2))lambda_(1)`

B

`(sinalpha_(2))/(sinalpha_(1))lambda_(1)`

C

`(cos alpha_(1))/(cos alpha_(2))lambda_(1)`

D

`(cos alpha_(2))/(cosalpha_(1)) lambda_(1)`

Text Solution

Verified by Experts

The correct Answer is:
B
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