WAEC - Physics (2018 - No. 17)

The bob of a simple pendulum takes 8.0s to complete 10 oscillations. Determine the frequency of oscillation of the bob.
0.125Hz
1.25Hz
7.50Hz
8.00Hz

Explanation

10 complete oscillations = 8.0s

1 complete oscillation (period) = \(\frac{8}{10}\)s

Frequency = \(\frac{1}{period}\) = \(\frac{1}{0.8} = 1.25Hz\)

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