Question

please tell the answer for this question with explanation..... ....... class 8 science... ​

Answer 1

HEY! HERE GOES YOUR ANSWER,

Given:-

A simple pendulum makes 10 oscillations in 20 seconds.

time period=?

frequency=?

A pendulum makes 10 oscillations in 20 seconds.

So it makes 1 oscillation in 20/10sec.=2sec

Time period=2 sec

Frequency=1/T=1/2=0.5 Hz

∴Time period and frequency of its oscillation are 2sec and 0.5 hertz.

HOPE IT HELPS :)

Answer 2

Answer:

Time period is 2 second and frequency is 0.5 Hz

Explanation:

✔️Time period = time taken to make one oscillation.

➡️ Its unit is second.

Time taken to make 10 oscillation = 20s

Time taken to make 1 oscillation = 10/20 sec.

Time taken to make one oscillation = 2s

✔️Time period of pendulum = 2s

Now,

✔️Frequency = number of oscillations made in 1 second.

➡️ It's unit is hertz ( Hz)

Numerically ,

✔️Frequency = 1 / time period

Frequency = 1 / 2 Hz

✔️Frequency = 0.5 Hz