An EM wave is propagating in a medium with a velocity V → = V i ^ . The instantaneous oscillating electric…

An EM wave is propagating in a medium with a velocity V→=V i^. The instantaneous oscillating electric field of this em wave is along +y axis. Then the direction of oscillating magnetic field of the EM wave will be along
  1. -y direction
  2. +z direction
  3. -z direction
  4. -x direction

Solution

V^=E^×B^ , i^=j^×k^
∴  B^=k^ , +z direction

Asked in: NEET 2018

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