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Questions  

Two pendulums have time periods T and 5T/4. They start S.H.M. at the same time from the mean position. What will be the phase difference between them after the bigger
pendulum has complete one oscillation? 

a
45o
b
90o
c
60o
d
30o

detailed solution

Correct option is B

As 5T4=T+T4By the time, the bigger pendulum makes one full oscillation, the smaller pendulum will make 1+14 oscillation. The bigger pendulum will be in the mean position and the smaller one will be in the positive extreme position. Thus, phase difference = 90o

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