Question

Sound waves of wavelength 5 cm have a velocity of 340 m/s in air. What is their frequency?​

Answer 1

Answer:

6800Hz

Explanation:

Wavelength (l)=5cm=0.05m

Velocity (V)=340m/s

let the frequency be f hz,

From relation, V=fl,

f=V/l

or, f= 340/0.05=34000/5=6800Hz