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Punjab Medical Punjab - MET Solved Paper-2011

  • question_answer
    Light wave is travelling along \[y-\]direction. If the corresponding\[\mathbf{E}\]vector at any time is along the \[x-\]axis, the direction of \[\mathbf{B}\] vector at that time is along

    A)  \[y-\]axis                           

    B)  \[x-\]axis

    C)  \[z-\]axis                           

    D)  \[-z-\]axis

    Correct Answer: C

    Solution :

    In light wave (electromagnetic wave) \[\mathbf{E}\]and\[\mathbf{B}\]are perpendicular to each other, so\[\mathbf{B}\]is along \[z-\]axis at that time.


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