Question

The frequency of source of sound is 10 Hz. How many times does it vibrate in a minute.

Answer 1

If any object creates 10 vibrations in 1 second then it is termed as the frequency of source of sound is 10 Hz.

1 minute = 60 seconds

In 1 second 10 vibrations are created.

∴ In 60 seconds (10×60) vibrations are created.

                            = 600 vibrations.

Answer 2

Frequency =no of vibrations/time taken
time =1min=60s

no of vibrations =frequency×time taken

no of vibrations =10×60

=600 vibrations