For 5 seconds, the pendulum makes 10 oscillations, which is the period.

The period of oscillation of the pendulum in our case is calculated using a simple formula that determines the number of oscillations per unit of time.

T = t / N,

where T is the period of oscillations, t is time, N is the number of oscillations that have occurred during a given period of time (t).

Then, our required period will be equal –

T = 5 s / 10 = 0.5 s. According to the condition of our example, the period of oscillation of the pendulum will be equal to 0.5 seconds.