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lonization potential of hydrogen atom is...

lonization potential of hydrogen atom is 13.6 eV. Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV. The spectral lines emitted by hydrogen atoms according to Bohr's theory will be

A

two

B

three

C

four

D

one

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The ground state energy of hydrogen atom is -13.6 eV. When its electron is in the first excited state, its excitation energy is:

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Knowledge Check

  • When a hydrogen atom is raised from the ground state to an excited state

    A
    P.E increases and K.E. decreases
    B
    P.E. decreases and K.E increases
    C
    both K.E. and P.E. increase
    D
    both K.E. and P.E. decrease

  • Hydrogen atom in ground state is excited by a monochromatic radiation of lambda=975 Å . Number of spectral lines in the resulting spectrum emitted will be

    A
    3
    B
    2
    C
    6
    D
    10

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

    A
    `10^(-18)` cm
    B
    `10^(-7)` cm
    C
    `10^(-6)` cm
    D
    `10^(-4)` cm

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    The ratio of the energies of the hydrogen atom is in first to second excited state is:

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