Question

A pendulum oscillates 60 times in 3 seconds.Find it's time period and frequency​

Answer 1

Explanation:

और टाइम पीरियड टाइम टेकन नंबर ऑफ पॉपुलेशन इज इक्वल टो सेट अप ऑन 16 सितंबर ऑफ पॉपुलेशन टाइम टेकन इज इक्वल टू एक्स अपऑन 1610

Answer 2

The frequency and time period are 20 Hz and 0.05 sec.

Given:

A pendulum oscillates 60 times in 3 seconds.

To Find:

The time period and frequency.

Solution:

To find the time period and frequency we will follow the following steps:

As we know,

Frequency is the number of oscillations per second and its unit is Hz.

Now,

Number of oscillations = 60

Time = 3 seconds

60 oscillation = 3 seconds

Number of oscillations in 1 sec = frequency =

$\frac{60}{3} = 20 \: hz$

Now,

$Time \: period = \frac{1}{frequency} = \frac{1}{20} = 0.05 \: sec$

Henceforth, the frequency and time period are 20 Hz and 0.05 sec.

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