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What is the deviation produced by a thin...

What is the deviation produced by a thin prism of angle `8^(@)` and of R.I. 1.5?

A

`((mu - 1))/A`

B

`(mu + 1) A`

C

`A/((mu - 1))`

D

`(mu -1) A`

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The correct Answer is:
D
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