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Question: Answered & Verified by Expert
Magnetic field in a plane electromagnetic wave is given by,

B=B0sinkx+ωtj^ T. Expression for corresponding electric field will be:

(Where c is speed of light)
PhysicsElectromagnetic WavesJEE MainJEE Main 2017 (08 Apr Online)
Options:
  • A E=-B0csinkx+ωtk^ V m-1
  • B E=B0csinkx-ωtk^ V m-1
  • C E=B0csinkx+ωtk^ V m-1
  • D E=B0csinkx+ωtk^ V m-1
Solution:
2429 Upvotes Verified Answer
The correct answer is: E=B0csinkx+ωtk^ V m-1

For electromagnetic wave speed of light is given by

c=E0B0
Electric field is expressed as E0=cB0 , E is  to direction x and direction of B

The expression of electric field is E=cB0 sin(kx+wt)k^  V m-1

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