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How is the speed of electromagnetic wave...

How is the speed of electromagnetic waves in vacuum determined by electric and magnetic fields ?

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`E_(0)=cB_(0) or c=(E_(0))/(B_(0))`
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Knowledge Check

  • The speed of electromagnetic wave in vacuum

    A
    Increases as we move from `gamma`-rays to radio waves
    B
    Decreases as move from `gamma`-rays to radio waves
    C
    Is same for all of them
    D
    None of these

  • We know that electric and magnetic field are associated with electromagnetic wave travelling in vaccum or some medium. Electric and magnetic fields

    A
    remain constant
    B
    are mutually perpendicular
    C
    are perpendicular to the direction of travel of light
    D
    have same average value

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