Question #49b7a

1 Answer
Aug 30, 2017

Depends on the electromagnetic properties of the medium.

The wave velocity in the medium is given by,

#v = (muepsilon)^(-1/2)#
Where #mu# and #epsilon# is respectively the magnetic permeability and electric permittivity of the medium.

Thus as the wave enters a new medium, the velocity changes.

From the relationship, #nulamda = v# which holds for EM waves as well, on finds that #lamda# which is the wavelength also changes accordingly.

It may be noted that frequency #nu# remains constant when the wave passes from one medium to another.