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A hydrogen atom is in ground state. In o...

A hydrogen atom is in ground state. In order to get six lines in its emission spectrum, wavelength of incident radiation should be

A

`800Å`

B

`825Å`

C

`975Å`

D

`1025Å`

Text Solution

Verified by Experts

The correct Answer is:
C
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A free electron of energy 1.4 eV collides with a H^(+) ions. As a result of collision, a hydrogen atom in the ground state is formed and a photon is released. What is the wavelength of the emitted radiation ? In which part of the electromagnetic spectrum does this spectrum lie ? Give ionisation potential of hydrogen =13.6 eV

An electron in hydrogen atom after absorbing-an energy photon jumps from energy state n_(1) to n_(2) . Then it returns to ground state after emitting six different wavelengths in emission spectrum.'The energy of emitted photons is either equal to, less than or grater than the absorbed photons: Then n_(1) and n_(2) are:

Knowledge Check

  • Hydrogen atom will be in its ground state , if its electrons is in

    A
    any energy level
    B
    the lowest energy state
    C
    the highest energy state
    D
    the intermediate state

  • Balmer series of hydrogen line emission spectrum lies in

    A
    visible region
    B
    infrared region
    C
    ultraviolet region
    D
    X ray region

  • The radius of hydrogen atom, in its ground state, is of the order of

    A
    `10^(-8)` cm
    B
    `10^(-6)` cm
    C
    `10^(-5)` cm
    D
    `10^(-4)` cm

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