During the propagation of electromagnetic waves in a medium:

Options

A. Electric energy density is double of the magnetic energy density.
B. Electric energy density is half of the magnetic energy density.
C. Electric energy density is equal to the magnetic energy density.
D. Both electric magnetic energy densities are zero.

Answer

C

Explanation

`E_(0)=CB_(0) and C=(1)/(sqrt(mu_(0)epsilon_(0)))`
Electric energy density `=(1)/(2)epsilon_(0)E_(0)^(2)=mu_(E)`
Magnetic energy density `=(1)/(2)(Bo^(2))/(mu_(0))=mu_(B)`
Thus, `mu_(E)=mu_(B)`
Energy is equally divided between electric and magnetic field