A wave of wavelength 0.60 cm is produced in air and it travels at a speed of 300 m s−1. Will it be audible?
No
From the relation υ = v λ, the frequency of the wave is
v=vλ=300 ms−10.60×10−2m=50000 Hz
This is much above the audible range. It is an ultrasonic wave and will not be audible