In a plane EM wave, the electric field oscillates sinusoidally at a frequency of 5 × 10¹⁰ ~Hz and an amplitude of 50 ~Vm⁻¹. The total average energy density of the electromagnetic field of the wave is: [Use ε₀=8.85 × 10⁻¹² C² / Nm² ]

(B) 2.212 × 10⁻¹⁰ Jm⁻³

Electromagnetic Waves: JEE Main 2024 Physics question

JEE Main 2024 · 31 Jan, Morning shift · Q6822

JEE Main 202431 Jan, Morning shiftPhysicsMediumElectromagnetic Waves120× since 2002

In a plane EM wave, the electric field oscillates sinusoidally at a frequency of

5 \times 10^{10} \mathrm{~Hz}

and an amplitude of

50 \mathrm{~Vm}^{-1}

. The total average energy density of the electromagnetic field of the wave is : [Use

\varepsilon_0=8.85 \times 10^{-12} \mathrm{C}^2 / \mathrm{Nm}^2

]

JEE Main 2024 Electromagnetic Waves Question with Solution (31 Jan Morning shift, Q6822) | JEE Arc

JEE Main 2024 · 31 Jan, Morning shift · Q6822

JEE Main 202431 Jan, Morning shiftPhysicsMediumElectromagnetic Waves120× since 2002

In a plane EM wave, the electric field oscillates sinusoidally at a frequency of

5 \times 10^{10} \mathrm{~Hz}

and an amplitude of

50 \mathrm{~Vm}^{-1}

. The total average energy density of the electromagnetic field of the wave is : [Use

\varepsilon_0=8.85 \times 10^{-12} \mathrm{C}^2 / \mathrm{Nm}^2

]