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Three transparent media of refractive in...

Three transparent media of refractive indices `mu_(1), mu_(2), mu(3)` respectively, are stacked as shown. A ray of light follows the path shown. No light enters the third medium.

Then-

A

`mu_(1) lt mu_(2) lt mu_(3)`

B

`mu_(2) lt mu_(2) lt mu_(3)`

C

`mu_(2) lt mu_(3) lt mu_(3)`

D

`mu_(3) lt mu_(1) lt mu_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
At first incidence light is deviated towards the normal therefore `mu_(2) gt mu_(1)` . Also at second incidence TIR takes place therefore `mu_(2) gt mu_(3)` , also `mu_(1) gt mu_(3)` because for the same angle in medium `mu_(2)` , angle in `mu_(2)` medium is less
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