JAMB Physics

If in a simple pendulum experiment, the length of the inextensible string is increased by a factor of four, its period is increased by a factor of

$4$

$\frac{\pi}{2}$

$\frac{1}{4}$

Correct answer: D

The period of a simple pendulum is directly proportional to the square root of the length of the string. So when the length of the string is increased by a factor of 4, the period of the oscillation is increased by a factor of 2.

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If in a simple pendulum experiment, the length of the inextensible string is increased by a factor of four, its period is increased by a factor of

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