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QJEEM19Phac0b: JEE Main 2019 Physics - Class 12 JEEM19Phac0b Solution: A plane electromagnetic wave travels in free space along the…

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 :

Multiple Choice Options

  • A 2 × 10–8 T along y-direction
  • B 6 × 10–8 T along z-direction
  • C 2 × 10–8 T along z-direction
  • D 6 × 10–8 T along x-direction

Step-by-Step Verified Solution

The direction of propagation of an EM wave is direction of E→×B→

i^=j^×B^

⇒B^=k^

C=EB⇒B=EC=63×108

B = 2 × 10–8 T along z direction.

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