Show that the motion of simple pendulum is simple harmonic and hence derive an equation for its time period. What is seconds pendulum?

When will the motion of a simple pendulum be simple harmonic?

The time period of a seconds' pendulum :

Under what condition the oscillation of a simple pendulum is simple harmonic ?

What is a conical pendulum ? Derive an expression for its time period ?

The length of a simple pendulum is decreased by 21% . Find the percentage change in its time period.

Assertion: The motion of a simple pendulum is simple harmoni for all angular displacement. Reason: Motion of simple pendulum is independent of the angular displacement.

The equation of motion of a simple harmonic motion is

If length of a simple pendulum is increased by 69%, then the percentage increase in its time period is

A simple pendulum completes 40 oscillations in one minute. Find its time period .