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Question
Two simple pendulums A and B have lengths 1.0 m and 4.0 m, respectively, at a certain place. Which pendulum will make more oscillations in 1 min? Explain your answer.
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Solution 1
Pendulum A will take more time (twice) in a given time because the time period of oscillation is directly proportional to the square root of the length of the pendulum. Therefore, the pendulum B will have a greater time period and thus making lesser oscillations.
Solution 2
A. The reason is that `"T" ∝ sqrt(l)` ∴ time period of B is more (twice) than that of A . Hence A will make more oscillations (twice) in a given time, than B.
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