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A glass prism of angle A = 60^(@) gives ...

A glass prism of angle `A = 60^(@)` gives minimum angle of deviation `theta ~~ 30^(@)` with the maximum error of `1^(@)` when a beam of parallel light passed through the prism during an experiment. Find the permissible error in the measurement of refractive index `mu` of the material of the prism.

A

`pi//3%`

B

`5pi // 18%`

C

`7pi // 18 %`

D

`pi//6%`

Text Solution

Verified by Experts

The correct Answer is:
B
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