Part I
Two tuning forks are played at the similar time in a room where the velocity of sound is 340 m/s. One of them has a frequency of340 Hz and the other a frequency of 360 Hz.
1) What is the beat frequency?
2) What is the successive time among beats?
Part II
If these two sounds go through a 5 m wide door a) which sound frequency is more widely diffracted during the door? b) Estimate the diffraction angle for these two sounds using the width of the door.