Question

(ii) An object vibrates 250 times in 5 seconds. Calculate its time period and frequency.​

Answer 1

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• F = 250/5 = 50 hz
• T = 1/5 = 0.02s

Answer 2

Given : A object vibrates 250 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 = 250/5

→ Frequency = 50 hertz

　

→ Time period = 5/50

→ Time period = 0.1 seconds

　

Therefore,

1. Frequency = 50 hertz.
2. Time period = 0.1 seconds.