A simple pendulum makes 15 oscillations in 30 seconds. What is the time period and frequency of its oscillation?

2 s, 2 Hz

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2 s, 1 Hz

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2 s, 0.5 Hz

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2 s, 4 Hz

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Solution

The correct option is C 2 s, 0.5 Hz
For 15 oscillation it takes 30 sec

For one oscillation Tme period = 30/15 = 2sec

Frequency = 1/ Time period
=1/2=0.5 Hz

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