Question

Sound waves of wave length x travel from a medium in which velocity is v m/s into another medium in which if velocity is 3m/s is the wave length of sound lamda in the sound medium

Answer 1

A single frequency traveling wave will take the form of a sine wave. A snapshot of the wave in space at an instant of time can be used to show the relationship of the wave propertiesfrequency, wavelength and propagation velocity.

The motion relationship "distance = velocity x time" is the key to the basic wave relationship. With the wavelength as distance, this relationship becomes λ = vT. Then using f=1/T gives the standard wave relationship

Calculation

This is a general wave relationship which applies to sound and light waves, other electromagnetic waves, and waves in mechanical media.