Question

The time period of a particle in simple harmonic motion is equal to the time between consecutive appearances of the particle at a particular point in its motion. This point is
(a) the mean position
(b) an extreme position
(c) between the mean position and the positive extreme
(d) between the mean position and the negative extreme

Answer 1

(b) an extreme position

One oscillation is said to be completed when the particle returns to the extreme position i.e. from where it started.