Question

· A simple pendulum of length 'l' and time period 'T' on earth is taken onto the surface of moon. How
should the length of the simple pendulum be changed
on the moon such that the time period is constant.
(Take ge = 6 gm)​

Answer 1

Answer:

When we set a simple pendulum into motion on the moon,we must realise that gravity on Earth is 6 times more than that of moon.

Now consider the formula of time period of pendulum below:

The value of ‘g’ will be reduced when pendulum is taken on moon so obviously we can see from the formula that the time period is bound to increase.

However claiming that it will lose time is wrong because time is absolute and independent of space . It will not lose time but will only oscillate with a lower frequency because frequency is inversely proportional to time period.

The damping effect of the pendulum on moon will also be reduced due to absence of air resistance and other forces which act on earth.