JEE Main & Advanced Physics EM Waves Question Bank Self Evaluation Test - Electromagnetic Waves

  • question_answer
    A plane electromagnetic wave is incident on a material surface. If the wave delivers momentum p and energy E, then

    A) \[p=0,E=0\]

    B) \[p\ne 0,E\ne 0\]

    C) \[p\ne 0,E=0\]

    D) \[p=0,E\ne 0\]

    Correct Answer: B

    Solution :

    [b] EM waves carry momentum and hence can exert pressure on surfaces. They also transfer energy to the surface so \[p\ne 0\] and \[E\ne 0\]


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