Question

ii)A pendulam oscillates 30 times in 3 hrs... Find its time period &frequency.​

Answer 1

Answer: The pendulum oscillates 30 times in 3 secs.

so taken taken to oscillate once =3/30 secs =0.1 secs

so time period of the pendulum is 0.1 secs.

Frequency =1/time period=1/0.1 Hz =10 Hz

We get, 10 Hz.

Explanation:

Answer 2

Answer:

10 times in 1 hour 5 times in half hour