Question

a pendulum oscillates 28 times in 7 seconds find its time period and frequency​

Answer 1

Answer:

Frequency = 4hz

Time period = ¼sec

Explanation:

Given that the pendulum oscillates 28 times in 7 seconds .

So , oscillations in a second = 28/7 = 4

Time taken to complete an oscillation = 1/4 = ¼s

Answer 2

Answer :

Explanation:

No. of oscillations= 28 times

Time taken=7 sec

Time period= time/no. of oscillations=7 sec/28

=1/4=0.4 sec

Frequency= no. of oscillations/ time=28/7 sec

4 per sec/4 Hz