A) \[\frac{2\mu \sin \theta }{1.22\,\lambda }\]
B) \[\frac{\mu \sin \theta }{\lambda }\]
C) \[\frac{2\mu \cos \theta }{1.22\ \lambda }\]
D) \[\frac{2\mu }{\lambda }\]
Correct Answer: A
Solution :
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