J & K CET Engineering J and K - CET Engineering Solved Paper-2012

  • question_answer
    A plane electromagnetic wave is propagating along the z-direction. If the electric field component of this wave is in the direction \[(i+j),\] then which of the following is the direction of the magnetic field component?

    A)  \[(-i+j)\]       

    B)  \[(i-j)\]

    C)  \[(-i-j)\]  

    D)  \[(i+k)\]

    Correct Answer: A

    Solution :

    The magnetic field component is perpendicular to the direction of propagation and the direction of the field. \[E\propto B\] should be in z-direction                         \[\therefore \] \[(i+j)\propto (-i+j)=2k\]


You need to login to perform this action.
You will be redirected in 3 sec spinner