Question

A pendulum oscillates 40 times in 4 seconds. Find it's time period and frequency.​

Answer 1

Answer:

A pendulum oscillates 40 times in 4 seconds. Find its time period and frequency. Frequency of oscillations is the number of oscillations of a vibrating object per second. Therefore frequency is = 40 vibrations /4 seconds= 10 Hertz.

Answer 2

Answer:

$\Large\bf\underline\blue{Question}$

A pendulum oscillates 40 times in 4 seconds. Find it's time period and frequency.

$\Large\bf\underline\pink{To find:-}$

•The time period

•Its Frequency

$\Large\bf\underline\red{Solution 1}$

Frequency of oscillation is defined as the number of oscillation of a vibrating body per second.It is given by

Frequency=$\frac{Number of oscillation}{Time}$

=$\frac{40}{4}$

=10 Hz

$\Large\bf\underline\green{Solution 2}$

The time period

The time required to complete one oscillation is known as Time period.

It is given by the inverse of the frequency.

Time period=$\frac{1}{Frequency of oscillation}$

=$\frac{1}{10}$

=0.1 s