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The circumference of the second orbit of...

The circumference of the second orbit of an atom or ion having single electron,`4times10^(-9)`m.The de-Broglie wavelength of electron revolving in this orbit should be

A

`2xx10^(-9)m`

B

`4xx10^(-9)m`

C

`8xx10^(-9)m`

D

`1xx10^(-9)m`

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The correct Answer is:
A
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The circumference of the second orbit of an atom or ion having single electron is 4 nm the de Broglie wavelength of electron (in nm) revolving in this orbit si :

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Knowledge Check

  • The de-Broglie wavelength of an electron revolving in the ground state orbit is

    A
    `pi r`
    B
    `pi r^(2)`
    C
    `2pi r`
    D
    `sqrt(2pir)`

  • The de-Broglie wavelength of an electron in the first Bohr orbit is

    A
    Equal to one fourth the circumference of the first orbit
    B
    Equal to half the circyumference of the first orbit
    C
    Equal to twice the circumference of the first orbit
    D
    Equal to the circulference of the first orbit

  • The de Broglie wavelength of an electron in the 3rd Bohr orbit is

    A
    `2pia_0`
    B
    `4pia_0`
    C
    `6pia_0`
    D
    `8pia_0`

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