An em wave is propagating in a medium wi...

An em wave is propagating in a medium with a velocity `vec(V)=V hat(i)`. The instantaneous oscillating electric field of this em waves is along + y axis. Then the direction of oscillating magnetic field of the em wave will be along

`-x` direction

`-z` direction

`-y` direction

`+z` direction

Text Solution

Verified by Experts

The correct Answer is:

`vec(v)=vec(E )xx vec(B)`
`therefore hat(i)=hat(j)xx hat(k)`
`therefore` Direction of `vec(B)` is in `+z` direction.

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