Question

an object completes 20 oscillation in 10 seconds, find its frequency and time period?

Answer 1

Given,

Oscillations completed by an object in 10 seconds = 20

To Find,

The frequency and time period of the object.

Solution,

The formula for calculating the frequency is

Frequency = Oscillations completed per second

                   = Number of oscillations/Time taken

                   = 20/10

                   = 2 hertz

Now,

Time period = 1/frequency

                     = 1/2

                      = 0.5 sec⁻¹

Hence, the frequency of the object is 2 hertz, and the time period of the object is 0.5 sec⁻¹.

Answer 2

The Time period and frequency are 2 seconds and 0.5 Hertz.

Explanation:

• Frequency: It is the number of motions made by the body in one second. It is the time taken by a body to total one oscillation.
• Period is the time taken by the molecule for one total oscillation.
• Hence, the Frequency and Time period are calculated as takes after.
• Time period = Time taken by the pendulum/Number of motions made by the pendulum.
• 20/10 =2s, Frequency =1/Period = 1/2=0.5Hz