A) 11 m
B) 6 m
C) 2.5 m
D) 5 m
Correct Answer: D
Solution :
For maximum path difference, \[\Delta =n\lambda \] \[2\times 0.6\ell =\pi \] \[\ell =\frac{\lambda }{1.2}=\frac{6}{1.2}\,\,=\,\,5\,m\]You need to login to perform this action.
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