zero
minimum
maximum
none of these
halved
doubled
quadrupled
simple pendulum
compound pendulum
torsional pendulum
second's pendulum
A pendulum which executes one beat per second is known as second's pendulum.
The periodic time of a particle moving with simple harmonic motion is the time taken by a particle for one complete oscillation.
The periodic time of a particle moving with simple harmonic motion is directly proportional to its angular velocity.
The velocity of the particle moving with simple harmonic motion is zero at the mean position.
The acceleration of the particle moving with simple harmonic motion is maximum at the mean position.