Problem 8: What should be the length of a simple pendulum whose time period is one second? What is its frequency?

Solution

Given data             Time period of the pendulum, T = 1 s

Required                 Length of the pendulum, l =?

Formula

Put values,

To find the frequency of the pendulum, we know that, T = 1/f. Since T = 1 s, therefore, frequency is 1 cycle per second.