Two sound waves with wavelengths 5.0 m and 5.5m respectively, each propagate in a gas with velocity 330 m/s. We expect the following number of beats per second
0
1
6
12
Correct Option: C
Frequencies of sound waves are
330
&
330
5
5.5
i.e., 66 Hz and 60 Hz Frequencies of beat = 66 – 60 = 6 per second
