Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

(a) A pendulum which has a time period of 2 s is called a second's pendulum. Its effective length is 1 m.

(b) The time period increases on the surface of the moon.

It is because Thus, as 'g' on moon decreases, time period increases.

Answered by  | 4th Jun, 2014, 03:23: PM