A) \[\theta =\frac{\pi }{4}\]
B) \[\frac{\pi }{4}<\theta <\frac{\pi }{2}\]
C) \[\frac{\pi }{2}<\theta <\frac{3\pi }{4}\]
D) \[\frac{3\pi }{4}<\theta <\pi \]
Correct Answer: D
Solution :
[d]: According to conservation of energy,You need to login to perform this action.
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