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JEE Main & Advanced Physics EM Waves Question Bank Numerical Value Type Questions - Electro Magnetic Wave

  • question_answer
    A flood light is covered with a filter that transmits red light. The electric field of the emerging beam is represented by a sinusoidal plane wave\[{{E}_{x}}=36\sin (1.20\times {{10}^{7}}z-3.6\times {{10}^{15}}t)V/m\]. Find the average intensity (in\[W/{{m}^{2}}\]) of the beam.

    Answer:

    1.72


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