Calculate the frequency of beats produced in air when two sources of sound are activated, one emitting a wavelength of 32 cm and the other of 32.2 cm. The speed of sound in air is 350 m/s.
7 Hz
Group-I
λ1=32 cm =32×10−2m
v = 350 m/s
so f1=frequency=35032×10−2=1093 Hz
Group-II
λ2=32.2 cm =32.2×10−2m
v = 350 m/s
f2=35032.2×10−2=1086Hz
So beat frequency = 1093 - 1086 = 7 Hz