A) 100
B) 200
C) 300
D) 400
Correct Answer: A
Solution :
The number of fringes shifting is decided by the extra path difference produced by introducing the glass plate. The extra path difference is \[(\mu -1)t=n\lambda \] or \[(1.5-1)\times 0.1\times {{10}^{-3}}=n\times 500\times {{10}^{-9}}\] \[\Rightarrow \] \[n=100\]You need to login to perform this action.
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