A pendulum of length L swings from rest to rest n times in one second. The value of acceleration due to gravity is

A pendulum of length L swings from rest to rest n times in one second.

1.	A pendulum of length L swings from rest to rest n times in one second. The value of acceleration due to gravity is
Answer» `4pi^2 n^2L` `2pi^2 n^2L` `pi^2 n^2L` `(pi^2 n^2L)/2` ANSWER :A