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The ratio of the highest to the lowest wavelength of Lyman series is
(a)
(b)
(c)
(d)

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Important Questions on Atomic Structure
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Which of the activities can be compared to the concept of quantisation?

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Which of the following elements has the highest work function value?

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Two series of spectral lines of atomic hydrogen which do not belong to infrared spectral region are

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The energy of an electron in the orbit of -atom (in ) is approximately:

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The wavelength (in ) of a particle of mass moving with a velocity of is ______

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The radius of the orbit of ion is:

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Which of the following relations is correct, if the wavelength is equal to the distance travelled by the electron in one second?
is the planck's constant and is the mass of electron

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For an electron in the d-orbital, the orbital angular momentum is
