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When a ray is reflected from one medium ...

When a ray is reflected from one medium to another,the wavelength changes from `6000 Å` to `4000 Å`. The critical anlge for the interfance will be:

A

`cos^(-1)((2)/(3))`

B

`sin^(-1)((2)/(3))`

C

`tan^(-1)((3)/(2))`

D

`sin^(-1)((2)/(sqrt(13)))`

Text Solution

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The correct Answer is:
B
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