JEE Main & Advanced Physics Wave Optics / तरंग प्रकाशिकी Question Bank EM Waves

  • question_answer
    The speed of electromagnetic wave in vacuum depends upon the source of radiation [Kerala PMT 2004]

    A)            Increases as we move from g-rays to radio waves

    B)            Decreases as we move from g-rays to radio waves

    C)            Is same for all of them     

    D)            None of these

    Correct Answer: C

    Solution :

               Speed of EM waves in vacuum = \[\frac{1}{\sqrt{{{\mu }_{0}}{{\in }_{0}}}}\]=constant


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