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The velocity of electromagnetic waves in...

The velocity of electromagnetic waves in a dielectric medium `(in_(r)=4)` is

A

`3xx10^(8) metre//second`

B

`1.5xx10^(8) metre//second`

C

`6xx10^(8) metre//second`

D

`7.5xx10^(7) metre//second`

Text Solution

Verified by Experts

The correct Answer is:
D
`mu=(c)/(v) implies v=7.5xx10^(7)m//sec therefore (D)`
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Knowledge Check

  • The velocity of electromagnetic waves in a dielectric medium (in_(r )= 4, mu_(r ) =4) is -

    A
    `3xx10^(8)` metre/second
    B
    `1.5xx10^(8)` metre/second
    C
    `6xx10^(8)` metre/second
    D
    `7.5xx10^(7)` metre/second

  • The velocity of electromagnetic waves in a dieclectric medium (epsilon_(r)=4) is:

    A
    `3xx10^(8) metre//second`
    B
    `1.5xx10^(8) metre//second`
    C
    `6xx10^(8) metre//second`
    D
    `7.5xx10^(7) metre//second`

  • The velocity of electromagnetic wave is parallel to

    A
    `B xx E`
    B
    `E xx B`
    C
    E
    D
    B

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