Question

What is the time period of a pendulum?

a) A time taken for a bob to move from its one extreme position to the other position.
b) A time taken by a bob for one complete to and fro motion about the mean position.
c) A time taken by a bob to go from its rest to one extreme position and return to the rest position.
d) Both A and B.

Answer 1

it is b.

It is the time taken to repeat the motion - start from equilibrium position, mean position, go one sid to extreme and then to the other extreme and come back to the mean position.  and it continues again and again.

Answer 2

The answer is option b.