Question

1.2. Calculate the time-period and frequency if a pendulum completes 20 oscillations in 4s​

Answer 1

Answer:

f = 5z

T = 0.2 s

Explanation:

Given:

Number of Oscillations = 20

Time taken = 4 seconds

To find:

Time period (T)

Frequency (f)

Method to find:

Frequency = No. Of Oscillations / Time taken

⇒ f = 20/4

⇒ 5 Hertz

Time Period = 1 / Frequency

⇒ T = 1/5

⇒ T = 2/10

⇒ T = 0.2 seconds