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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 Vm –1 along y-direction. Its corresponding magnetic field component, B would be -

1. 2 × 10 –8 T along y-direction
2. 6 × 10 –8 T along z-direction
3. 2 × 10 –8 T along z-direction
4. 6 × 10 –8 T along x-direction

Correct answer: 2 × 10 –8 T along z-direction

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