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

2024 · 9 Apr · Shift 1 · Q61
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electromagnetic Waves
  5. /2024 · 9 Apr · Shift 1 · Q61

Electromagnetic Waves question

2024 · 9 Apr · Shift 1 · Q61

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1
A plane EM wave is propagating along xxx direction. It has a wavelength of 4 mm4 \mathrm{~mm}4 mm. If electric field is in yyy direction with the maximum magnitude of 60 Vm−160 \mathrm{~Vm}^{-1}60 Vm−1, the equation for magnetic field is :
  1. A
    Bz=2×10−7sin⁡[π2(x−3×108t)]k^T\mathrm{B}_z=2 \times 10^{-7} \sin \left[\frac{\pi}{2}\left(x-3 \times 10^8 \mathrm{t}\right)\right] \hat{\mathrm{k}} \mathrm{T}Bz​=2×10−7sin[2π​(x−3×108t)]k^T
  2. B
    Bz=2×10−7sin⁡[π2×103(x−3×108t)]k^T\mathrm{B}_z=2 \times 10^{-7} \sin \left[\frac{\pi}{2} \times 10^3\left(x-3 \times 10^8 \mathrm{t}\right)\right] \hat{\mathrm{k}} \mathrm{T}Bz​=2×10−7sin[2π​×103(x−3×108t)]k^T
  3. C
    Bz=60sin⁡[π2(x−3×108t)]k^T\mathrm{B}_z=60 \sin \left[\frac{\pi}{2}\left(x-3 \times 10^8 \mathrm{t}\right)\right] \hat{\mathrm{k}} \mathrm{T}Bz​=60sin[2π​(x−3×108t)]k^T
  4. D
    Bx=60sin⁡[π2(x−3×108t)]i^T\mathrm{B}_x=60 \sin \left[\frac{\pi}{2}\left(x-3 \times 10^8 \mathrm{t}\right)\right] \hat{\mathrm{i}} \mathrm{T}Bx​=60sin[2π​(x−3×108t)]i^T
PreviousNext

More from Electromagnetic Waves

  • The magnetic field in a plane electromagnetic wave is By​=(3.5×10−7)sin(1.5×103x+0.5×1011t)T. The corresponding electric field will be :2024 · MCQ
  • A plane electromagnetic wave propagating in x-direction is described by Ey​=(200Vm−1)sin[1.5×107t−0.05x];  The intensity of the wave is : (Use ϵ0​=8.85×10−12C2 N−1 m−2…2024 · MCQ
  • An object is placed in a medium of refractive index 3 . An electromagnetic wave of intensity 6×108 W/m2 falls normally on the object and it is absorbed completely. The radiation pressure on the object would…2024 · MCQ
  • A plane electromagnetic wave of frequency 35 MHz travels in free space along the X-direction. At a particular point (in space and time) E=9.6j^​ V/m. The value of magnetic field at this point…2024 · MCQ
  • The electric field of an electromagnetic wave in free space is represented as E=E0​cos(ωt−kz)i^. The corresponding magnetic induction vector will be :2024 · MCQ
  • 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 :…2024 · MCQ
  • Given below are two statements: Statement I: Electromagnetic waves carry energy as they travel through space and this energy is equally shared by the electric and magnetic fields. Statement II: When electromagnetic waves strike a surface,…2024 · MCQ
  • Match List I with List II : Choose the correct answer from the options given below : Includes table2023 · MCQ