MHT CET Physics question
In S. H. M. a simple pendulum oscillates with frequency 'f'. If the length of the pendulum is increased by three times its original length then the frequency of oscillation of pendulum will be [MHT-CET 2020]
Answer: (B)
Solution
New length = l + 3l = 4l and , so \frac{f}{\sqrt4}\frac$
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