A pendulum oscillates in simple harmonic motion if and only if (I) the size of the pendulum's bob is negligible compared to the length of the pendulum. (II) the angular amplitude is less than $10^\circ$.

Question

A pendulum oscillates in simple harmonic motion if and only if
(I) the size of the pendulum's bob is negligible compared to the length of the pendulum.
(II) the angular amplitude is less than $10^\circ$.

Both (I) and (II) are correct

Both (I) and (II) are incorrect

Only (I) is correct

Only (II) is correct

Solution

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