A) 0.866
B) 0.5
C) 0.707
D) 0.75
Correct Answer: D
Solution :
Phase difference, \[\phi =\frac{2\pi }{\lambda }\times \] path difference \[\phi =\frac{2\pi }{\lambda }\times \frac{\lambda }{6}=\frac{\pi }{3}={{60}^{o}}\] Intensity, \[I={{I}_{0}}{{\cos }^{2}}\left( \frac{\phi }{2} \right)\] \[\frac{I}{{{I}_{0}}}={{\cos }^{2}}({{30}^{o}})={{\left( \frac{\sqrt{3}}{2} \right)}^{2}}=0.75\]You need to login to perform this action.
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