Question

A pendulum oscillates 80 times in 5 seconds.Find its time
period and frequency.









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Answer 1

Answer:

Time period= 0.05sec , frequency = 20 hz

Answer 2

Given : A pendulum oscillates 80 times in 5 seconds.

　

To find : What is its time period and frequency?

　

Using formula :

1) Frequency = Number of times the pendulum oscillates/Total number of time taken.

　

2) Time period = Number of oscillation per second/Frequency.

　

Calculations :

→ Frequency = 80/5

→ Frequency = 16 hertz

　

→ Time period = 1/16

→ Time period = 0.0625 seconds

　

Therefore,

1. Frequency = 16 hertz.
2. Time period = 0.0625 seconds.