Question

The frequency of a source of sound is $100Hz$. How many times does it vibrate in a minute?

• A. 6000 times
• B. 600 times
• C. 1000 times
• D. 100 times

Answer 1

The correct option is A

6000 times

Frequency$=100Hz$ (given)
This means the source of sound vibrates:
100 times in one second
Therefore, number of vibrations in:
1 minute, i.e. in 60 seconds
$=100\times 60=6000$ times.