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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 becomes, 20 fringes shift. If it is replaced by another thin plate of half the thickness and of R.I 1.7 the number of fringes that undergo displacement is

A

23

B

14

C

28

D

7

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The correct Answer is:
B
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AAKASH SERIES-WAVE OPTICS-PROBLEMS (LEVEL - II)
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