Question

The frequency of sound is 500 Hz. How many times it vibrate in a minute :

• A. 30,000
• B. 300
• C. 30
• D. 8.33

Answer 1

Answer: (A)

30,000

Frequency of vibration is defined as number of vibrations produced per second .

Given , frequency of sound 500Hz ,

it means that in $1$ second , number of vibrations produced $=500$

therefore , in 60 second (1 minute) , number of vibrations produced $500\times 60/1=30,000$