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An EM wave is propagating in a medium wh...

An `EM` wave is propagating in a medium whith a velocity `vecv=vhati`. The instantaneous oscillating electric field of this of em wave is along `+y` axis. Then the direction of oscillating magnetic field of the `EM` wave will be along

A

−z direction

B

`+z` direction

C

−y direction

D

−x direction

Text Solution

Verified by Experts

The correct Answer is:
B
`hatV= hatE xx hatB, hati= hatj xx hatk`
`:. hatB= hatk, +z` direction
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