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A ray of light passes through for transp...

A ray of light passes through for transparent media with refractive index `n_1, n_2, n_3 and n_4` as shown in the figure. The surfaces of all media are parallel.

In the emergent ray DE is parallel to incidence ray AB, then

A

`mu_(1)=mu_(2)`

B

`mu_(2)=mu_(3)`

C

`mu_(3)=mu_(4)`

D

`mu_(4)=mu_(1)`

Text Solution

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The correct Answer is:
D
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