Question

A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency.
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Answer 1

Answer:

Frequency is defined as the number of oscillations per unit time. Time = 4 sec. Time Period = (4/40) = 0.1 sec. Frequency = (Number of Oscillations)/ (Time taken)Frequency = (40/4) =10Hz

Answer 2

$\huge\underline{\bf \red{ ❥ Solution }}$

Time Period,

Time period = Time/No. of oscillations in time

→ Time period = 4/40

→ Time period = 0.1 sec

Frequency,

Frequency = 1/Time period

→ Frequency = 1/0.1

→ Frequency = 10 Hz

• Hence, the time period is 0.1 sec & frequency is 10 Hz.