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By what fraction does the mass of an H a...

By what fraction does the mass of an H atom decreases when it makes an n=3 to n=1 transition ?

Text Solution

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`-1.29xx10^(-8)`
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Knowledge Check

  • Which transition in the hydrogen atomic spectrum will have the same wavelength as the transition, n = 4 " to " n = 2 of He^(+) spectrum?

    A
    `n=3 " to " n = 2`
    B
    `n=4 " to " n = 2`
    C
    `n=3 " to " n = 1`
    D
    `n=2 " to " n = 1`

  • The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is :

    A
    194.8 nm
    B
    913.3 nm
    C
    490.7 nm
    D
    121.8 nm

  • Infrared radiation is obtained in an hydrogen atom when transition taks place from the state n=4 to n=2. Which transition will produce ultraviolet radiation?

    A
    `3to2`
    B
    `4to3`
    C
    `5to4`
    D
    `2to1`

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    Calculate the change in magnetic dipole moment when the electron in a H- atom makes a transition from the n=4 orbit to the n=3 orbit. Suppose that the atoms is in a magnetic field of induction. Calculate the change in energy when it makes the same transition and the corresponding change in frequency of the emitted photon due to the magnetic field.

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