A second's pendulum is taken on the surface of moon where acceleration due to gravity is 1/6th of that of earth.Will the time period of pendulum remain same or increase or decrease?Give a reason.

2 answers

period will be shorter...gravity on earth is stronger, and it pulls the pendulum down faster.

period=2PIsqrt(Length/g)
An inspection of the equation for the period shows that the period Increases as g decreases.
Therefore, the period is Longer on the moon.