MHT CET Physics question
Two pendulums of lengths 1 metre and 16 metre start oscillating one behind the other from the same stand. At some instant, the two are in the mean position in the same phase. The time period of shorter pendulum is T. The minimum time, after which the two threads of the pendulum will be one behind the other, is
Answer: (C)
Solution
The longer pendulum has period (). The threads lie one behind the other when the two are again in the same phase, i.e. the shorter one has gained exactly one extra oscillation: ,
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