Question

An object that completes 20 vibrations in 10 seconds has a frequency of

Answer 1

Answer:

The object has frequency of 2 Hz and time period of 0.5 s.

Explanation:

Frequency is defined as number of oscillation per second ie back and forth swings done in single second.

Here it is given that the object oscillates 20 times in 10 seconds.

So f = $\frac{20}{10}$ = 2Hz

The time period is defined as time taken by the object to complete one full oscillation.

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

T= $\frac{1}{2}$ =0.5 s

Thus the object has frequency of 2 Hz and time period of 0.5 s.

Answer 2

An object that completes 20 vibrations in 10 seconds has a frequency of 2 Hz and time period 0.5 seconds.

Frequency and Time

According to the question,

Number of oscillations = 20

Time = 10 seconds

We know,

Frequency, f = $\frac{Number \ of \ oscillations}{Time }$

By substituting the values, we get

                     = $\frac{20}{10}$

                     = 2 Hz

hence,

The time period will be:

→ Time period = $\frac{1}{Frequency}$

or,

→ T = $\frac{1}{f}$

     = $\frac{1}{2}$

     = 0.5 s

Thus the response above is correct.

Find out more information about frequency here:

https://brainly.com/question/301048