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प्रश्न
The motion of a torsional pendulum is
(a) periodic
(b) oscillatory
(c) simple harmonic
(d) angular simple harmonic
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उत्तर
(a) periodic
(b) oscillatory
(d) angular simple harmonic
Because it completes one oscillation in a fixed interval of time and the oscillations are in terms of rotation of the body through some angle.
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