Class 11 Physics Oscillations Frequency

Frequency

It is defined as number of cycles per second.

  • It is denoted by ν.
  • I.unit is sec-1
  • Special Unit is Hertz(Hz)

number of sine waves in one second

 

Relation between Period and Frequency

                  ν = 1/T

where ν = number of cycles in 1 second

         T = 1 cycle

 

Problem: - On an average human heart is found to be beat 75 times in a minute. Calculate frequency and time period?

Answer: -

The beat frequency of heart = 75/ (1 min)

 = 75/ (60 s)

 = 1.25 s–1

 = 1.25 Hz

 The time period T = 1/ (1.25 s–1) = 0.8 s 

Share these Notes with your friends  

< Prev Next >

You can check our 5-step learning process


.