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Questions  

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 :

a
2 oscillations
b
4 oscillations
c
3 oscillations
d
5 oscillations

detailed solution

Correct option is A

N+1 Ts=NTl becuase T∝l                   N+1N=llls=20.5=2 ⇒        N=1 and N+1=2.

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A force F1 when it acts on a body causes it to execute SHM of time period T1 whereas another force F2 when actions on the same body causes it to execute SHM of time period T2.If both forces act on the body simultaneously and in a manner that they are always acting in the same phase, the time period of SHM will be:


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