Question

A tuning fork produces 4 beats per second when sounded togetehr with a fork of frequency 364 Hz. When the first fork is loaded with a little wax ten the number of beats becomes two per second. What is the frequency of the first fork?

Answer 1

Number of beats `v=+-(v_(1)-v_(2))`
`impliesv_(1)=364+3` or `364-3`
`=367` or 361Hz
Loading a fork with ws decreases its frequency.
On loading the first fork, the number of beats produced per second decreases therefore `v_(1)=367Hz`.