A) \[45{}^\circ \]
B) \[90{}^\circ \]
C) \[60{}^\circ \]
D) \[30{}^\circ \]
Correct Answer: B
Solution :
When the large pendulum complete one oscillation, then the small pendulum. Complete\[\frac{5}{4}\]oscillation. Thus, the phase of small pendulum is about\[\frac{T}{4}\]s more than that of large pendulum. Hence, phase difference between them\[=\frac{\pi }{2}\]rad.
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