The energy density associated with electric field E and magnetic field B of an electromagnetic wave in free space is given by (ε₀-. permittivity of free space, μ₀- permeability of free space)

(A) U E =(ε₀ E²)/2, U B =(B²)/(2 μ₀)

(B) U E =(E²)/(2 ε₀), U B =(μ₀ B²)/2

(C) U E =(ε₀ E²)/2, U B =(μ₀ B²)/2

(D) U E =(E²)/(2 ε₀), U B =(B²)/(2 μ₀)

Electromagnetic Waves: JEE Main 2023 Physics question

JEE Main 2023 · 6 Apr, Evening shift · Q6817

JEE Main 20236 Apr, Evening shiftPhysicsMediumElectromagnetic Waves120× since 2002

The energy density associated with electric field

\vec{E}

and magnetic field

\vec{B}

of an electromagnetic wave in free space is given by

\left(\epsilon_{0}-\right.

permittivity of free space,

\mu_{0}-

permeability of free space)