a pendulum oscillates 100 times in 5 seconds.find its time period and frequency ? Share with your friends Share 1 Akansha Tyagi answered this Frequency,f=No. of oscillations in particular time f =1005=20HzTime period=1f=120=.05s 4 View Full Answer Yash Khandelwal answered this No. of Oscillations = 100 Time Period = 5 sec. Frequency = No. of Oscillations / Time Period = 100 / 5 = 20 Hz 0