State the laws of simple pendulum .

State the laws of a simple pendulum. What is seconds pendulum? Calculate its length.

State any two laws of simple pendulum.

When the length of a simple pendulum is decreased by 600 mm, the period of oscillation is halved. The original length of the pendulum was

When the length of a simple pendulum is decreased by 20 cm, the period changes by 10 %. Find the original length of the pendulum ?

When the length of a simple pendulum is increased by 36 cm, its time period of oscillation is found to increase by 25 %. The initial length of the simple pendulum 1s (Acceleration due to gravity= 9.8ms^(-2) )

What is simple pendulum ?

If the length of simple pendulum is increased by 300%, then the time period will be increased by

If the length of a simple pendulum is equal to the radius of the earth, its time period will be

State the laws of reflection.

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