A) \[34%\]
B) \[21%\]
C) \[50%\]
D) \[17%\]
Correct Answer: D
Solution :
\[\sin \theta =\frac{3}{4}\] \[\cos \theta =\frac{\sqrt{7}}{4}\] \[\Omega =2\pi (1-\cos \theta )\] \[=2\pi \,\,(1-\sqrt{7}/4)\] Fraction of energy transmitted\[=\frac{1-\sqrt{7}/4}{2}\] \[=17%\]You need to login to perform this action.
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