Question

a simple pendulum takes 3.6 s to complete 20 oscillations what is the time period of the pendulum.?? ​

Answer 1

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$<b><u><i>$ Time period = no. Of oscillations/time taken.

So,

♦️️ 3.6/20

♦️️ 1.8/10

♦️️ 0.18 s ✔️✔️

Answer 2

A simple way to do this is to apply the formula of time period .

Time period = total time taken / number of oscillations

⇒ T = 3.6 s / 20

⇒ T = 1.8 s / 10

⇒ T = 0.18 s

The time period is 0.18 s .

NOTE :

→ The time period is the time taken to complete 1 oscillation .

→ Let there be n oscillations .

→ Let Time taken be t .

→ Hence time period = t/n .

→ We can use the formula to find time period .

→ We also can find the number of oscillations per time if time period is known .

→ Other important formulas :

⇒ F = 1/t

→ F = frequency .

→ t = time period .

→ Frequency is the number of oscillations per second .

→ It is the reciprocal of time period .