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When a thin transparent plate of Refract...

When a thin transparent plate of Refractive Index `1.5` is introduced in one of the interfearing beam produces 20 fringes shift. If it is replaced by refractive index `1.7` , the number of fringes that undergo displacement is

A

23

B

14

C

28

D

7

Text Solution

Verified by Experts

The correct Answer is:
B
Shift `= (beta)/(lambda) (mu - 1)t`
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NARAYNA-WAVE OPTICS-LEVEL - II(H.W)
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