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The frequency of the rations having wave...

The frequency of the rations having wave number `10m^(-1)` is:

A

`10s^(-1)`

B

`3xx10^(7)s^(-1)`

C

`3xx10^(11)s^(-1)`

D

`3xx10^(9)s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`overline(v)=(1)/(lamda)`
`v=coverline(v)=(c)/(lamda)=3xx10^(8)xx10=3xx10^(9)s^(-1)`
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Knowledge Check

  • The velocity of all radio waves in free space is 3 xx 10^(8) "m/s" . The frequency of a radio wave of wavelength 150 m is:

    A
    50 KHz
    B
    2 kHz
    C
    2 MHz
    D
    1 MHz

  • The frequency of radio waves corresponding to a wavelength of 10 m is

    A
    ` 3 xx 10 ^7 ` Hz
    B
    ` 3.3 xx 10 ^ 8 ` Hz
    C
    ` 3 xx 10^9 ` Hz
    D
    ` 3 xx 10 ^ ( - 7 ) ` Hz

  • The frequency of radio waves corresponding to wavelength of 20 m is

    A
    ` 3 xx 10^(7) Hz `
    B
    `1.5 xx 10^(7)` Hz
    C
    `5 xx 10^(-7) Hz `
    D
    `3 xx 10^(6) Hz `

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