Question

the pendulum oscillates 40 times in 2 seconds. find its 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

$\huge\underline{\bf \blue{ ᴀɴsᴡᴇʀ }}$

Time Period,

Time period = Time/No. of oscillations in time

→ Time period = 4/40

→ Time period = 0.1 sec

Frequency,

Frequency = 1/Time period

→ Frequency = 1/0.1

→ Frequency = 10 Hz

Hence, the time period is 0.1 sec & frequency is 10 Hz.