Question

a pendulum oscillates 10 times in 20 sec , find its time period and frequency

Answer 1

Time period : Total Time ÷ Total Number of Oscillations. = 20 ÷ 10 = 2 seconds Frequency =  Total Number of Oscillations ÷ Total Time  = 10 ÷ 20 = 0.5 hertz (hz)

Answer 2

The time period and frequency are 2 s and 0.5 Hz respectively.

Explanation:

The time period is equal to time taken be the pendulum divided by number of oscillations of pendulum.

Mathematically,

$T=\frac{t}{n}$

n is the number of oscillations made by pendulum in t seconds.

Given n = 10, t = 20 s

substitute the values, we get

$T=\frac{20s}{10}$

T = 2 s.

Frequency is given as

$f=\frac{1}{T}$

So,

$f=\frac{1}{2}$

f = 0. 5 Hz

Thus, time period and frequency are 2 s and 0.5 Hz respectively.

#Learn more: Frequency and time period

https://brainly.in/question/8221016