Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Electromagnetic Waves question

2023 · 6 Apr · Shift 2 · Q48
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electromagnetic Waves
  5. /2023 · 6 Apr · Shift 2 · Q48

Electromagnetic Waves question

2023 · 6 Apr · Shift 2 · Q48

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1
The energy density associated with electric field E⃗\vec{E}E and magnetic field B⃗\vec{B}B of an electromagnetic wave in free space is given by (ϵ0−\left(\epsilon_{0}-\right.(ϵ0​− permittivity of free space, μ0−\mu_{0}-μ0​− permeability of free space)
  1. A
    UE=ϵ0E22,UB=B22μ0U_{E}=\frac{\epsilon_{0} E^{2}}{2}, U_{B}=\frac{B^{2}}{2 \mu_{0}}UE​=2ϵ0​E2​,UB​=2μ0​B2​
  2. B
    UE=E22ϵ0,UB=μ0B22U_{E}=\frac{E^{2}}{2 \epsilon_{0}}, U_{B}=\frac{\mu_{0} B^{2}}{2}UE​=2ϵ0​E2​,UB​=2μ0​B2​
  3. C
    UE=ϵ0E22,UB=μ0B22U_{E}=\frac{\epsilon_{0} E^{2}}{2}, U_{B}=\frac{\mu_{0} B^{2}}{2}UE​=2ϵ0​E2​,UB​=2μ0​B2​
  4. D
    UE=E22ϵ0,UB=B22μ0U_{E}=\frac{E^{2}}{2 \epsilon_{0}}, U_{B}=\frac{B^{2}}{2 \mu_{0}}UE​=2ϵ0​E2​,UB​=2μ0​B2​
PreviousNext

More from Electromagnetic Waves

  • The energy of an electromagnetic wave contained in a small volume oscillates with2023 · MCQ
  • The amplitude of magnetic field in an electromagnetic wave propagating along y-axis is 6.0×10−7 T. The maximum value of electric field in the electromagnetic wave is2023 · MCQ
  • The electric field in an electromagnetic wave is given as E=20sinω(t−cx​)j​NC−1 where ω and c are angular frequency…2023 · MCQ
  • A plane electromagnetic wave of frequency 20 MHz propagates in free space along x-direction. At a particular space and time, E=6.6j^​ V/m. What is B…2023 · MCQ
  • Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : EM waves used for optical communication have longer wavelengths than that of microwave, employed in…2023 · MCQ
  • Which of the following Maxwell's equation is valid for time varying conditions but not valid for static conditions :2023 · MCQ
  • In an electromagnetic wave, at an instant and at particular position, the electric field is along the negative z-axis and magnetic field is along the positive x-axis. Then the direction of propagation of electromagnetic wave is:2023 · MCQ
  • Match List I with List II of Electromagnetic waves with corresponding wavelength range : Choose the correct answer from the options given below: Includes table2023 · MCQ