Consider that the bob of a simple pendulum has moved from its mean position to one of its extreme positions and then again to mean position from where it moved to the other extreme position and then back to the mean position. The bob of the simple pendulum has now completed:
The time period of a pendulum is(a) the time taken for the bob to move from one extreme position to the other.(b) the time taken by the bob for one complete to and fro motion about the mean position.(c) the time taken by the bob to go from the rest position to one extreme and return to the rest position.(d) none of the above.