A simple pendulum makes 50 oscillations in one minute. What is its period of oscillation?

A. 0.02s
B. 0.20s
C. 0.83s
D. 1.20s
E. 50.00s

Correct Answer:

Option D – 1.20s

Explanation

T = t/no. of oscillation
= 1 x 60/50
= 1.2s