NEET Physics EM Waves NEET PYQ-EM Waves

  • question_answer
    The ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is: (c = speed of electromagnetic waves)                                            [NEET 2020]

    A)  \[1:1\]  

    B)                   \[1:c\]

    C)  \[1:{{c}^{2}}\]

    D)                   \[c:1\]

    Correct Answer: A

    Solution :

    [a] In an electromagnetic wave, half of the intensity is provided by the electric field and half by the magnetic field Hence required ratio should be \[1:1\]

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