Question

a simple pendulum makes 80 oscillations in 60 seconds. what is the time period and frequency of its oscillation ?​

Answer 1

Answer:

Time period of the simple pendulum=0.75 seconds

Frequency of the simple pendulum=1.33 Hz

Explanation:

Time period of a simple pendulum is the time required by the pendulum to complete one cycle of oscillation. This problem can be solved by the use of the unitary method.

For 80 oscillations, the time required is 60 seconds.

For 1 oscillation, the time required is 60/80 seconds or 0.75seconds

Frequency is often the reciprocal of time. Hence the frequency of the pendulum to complete one cycle of oscillation will be 1/0.75, which turns out to be 1.33Hz.