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Atoms and Nucle...

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  • Question 1
    4 / -1

    The ratio of minimum wavelengths of Lyman and Balmer series will be

  • Question 2
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    In Bohr\'s model of hydrogen atom, which of the following pairs of quantities are quantized?

  • Question 3
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    The energy of the highest energy photon of Balmer series of hydrogen spectrum is close to

  • Question 4
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    An electron changes its position from orbit n = 4 to the orbit n = 2 of an atom. The wavelength of the emitted radiation is (R = Rydberg\'s constant)

  • Question 5
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    If the energy of a hydrogen atom in nth orbit is En, then energy in the nth orbit of a singly ionized helium atom will be

  • Question 6
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    What is the ratio of wavelength of radiations emitted when an electron in hydrogen atom jumps from fourth orbit to second orbit and from third orbit to second orbit?

  • Question 7
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  • Question 8
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    What is the ground state energy of positronium?

  • Question 9
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    The transition of an electron from n2 = 5, 6,... to n1. = 4 gives rise to

  • Question 10
    4 / -1

    White light is passed through a dilute solution of potassium permanganate. The spectrum produced by the emergent light is

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