What forces keep the simple pendulum in simple harmonic motion?

In a simple harmonic motion

In a simple harmonic motion

In a simple harmonic motion

Define simple harmonic motion ?

What is simple harmonic motion ?

Define a simple harmonic motion.

The length of a simple pendulum executing simple harmonic motion is increased by 21%. The percentage increase in the time period of the pendulum of increased length is…………

The length of a simple pendulum executing simple harmonic motion is increased by 21% . The percentage increase in the time period of the pendulum of increased length is

The length of a simple pendulum executing simple harmonic motion is increased by 21% . The percentage increase in the time period of the pendulum of increased length is