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A given ray of light suffers minimum dev...

A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in figure. The ray will now suffer

A

greater deviation

B

no deviation

C

same deviation as before

D

total internal reflection

Text Solution

Verified by Experts

The correct Answer is:
c.

Since there will be no refraction from P to Q and then from Q to R (all being identical). Hence, the ray will now the same deviation as before the point n, `n^(')` being same for the ray.
Correct option is(c).
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Knowledge Check

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