Two pendulums suspended from same point having lengths 2m and 0.5m. If they displaced slightly and released, then they will be in same phase, when small pendulum will have completed :
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a
2 oscillations
b
4 oscillations
c
3 oscillations
d
5 oscillations
answer is A.
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Detailed Solution
N+1 Ts=NTl becuase T∝l N+1N=llls=20.5=2 ⇒ N=1 and N+1=2.