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Question: Answered & Verified by Expert
A plane electromagnetic wave travels in free space along the x-direction. The electric field component of the wave at a particular point of space and time is E=6 V m-1 along y-direction. Its corresponding magnetic field component, B would be:
PhysicsElectromagnetic WavesJEE MainJEE Main 2019 (08 Apr Shift 1)
Options:
  • A  2×10-8 T  along z-direction
  • B  2×10-8 T  along y-direction
  • C 6×10-8 T  along z-direction
  • D  6×10-8 T  along x-direction
Solution:
1587 Upvotes Verified Answer
The correct answer is:  2×10-8 T  along z-direction
B=EC=63×108=2×10-8T
E×B is along x -direction
j^×ai^+bj^+ck^=i^
c=1
B is along k^
B=2×10-8T along z -direction

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