Question

A pendulum oscillates 45 times in 5 seconds. Calculate it’s time period and frequency.
(Please answer it’s urgent)

Answer 1

Answer:

The time period and frequency are 0.25 sec and 4 Hz.

Explanation:

Given that,

Number of oscillates n= 20

Time t = 5 sec

We need to calculate the time period

Using formula of time period

T=\dfrac{t}{n}T=

n

t

Where, t = time

n = number of oscillation

Put the value into the formula

T=\dfrac{5}{20}T=

20

5

T=0.25\ secT=0.25 sec

We need to calculate the frequency

Using formula of frequency

f=\dfrac{1}{T}f=

T

1

f=\dfrac{1}{0.25}f=

0.25

1

f=4\ Hzf=4 Hz

Hence, The time period and frequency are 0.25 sec and 4 Hz.