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Solar radiation is an example of

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Important Questions on Structure of Atom

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For any given series of spectral lines of atomic hydrogen, let  Δv-=v-max-v-min  be the difference in maximum and minimum wave number in cm-1

The ratio Δv-Lyman/Δv-Balmar is

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The Lyman series corresponds to the emission lines of hydrogen atom due to the transitions of the type n1(21,31,41, etc ) where n is the principal quantum number of the excited state. The ionization energy of the hydrogen atom can be determined by plotting:
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If the shortest wavelength in Lyman series of hydrogen atom is A, then the longest wavelength in Paschen series of He+ is
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For the Balmer series, in the spectrum of H atom, v-=RH1n12-1n22, the correct statements among I to IV are,
I As wavelength decreases, the lines in the series converge.
II The integer n1 is equal to 2.
III The lines of the longest wavelength correspond to n2=3.
IV The ionization energy of hydrogen can be calculated from the wave number of these lines.
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The ratio of the highest to the lowest wavelength of Lyman series is
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The ratio of the shortest wavelength of two spectral series of hydrogen spectrum is found to be about 9. The spectral series are:
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Which of the following is correct?
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If the wave number of first spectral line of Lyman series of He+ is Xcm-1, then the wave number of second line of Balmer series of hydrogen atom in cm-1 is
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The spectrum of Helium is expected to be similar to that of____
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The product obtained after positron emission from Ga3168 is
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The shortest wavelength of H atom in the Lyman series is λ1. The longest wavelength in the Balmer series of He+ is :
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The correct representation of wavelength intensity relationship of an ideal black body radiation at two different temperatures T1 and T2 is
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The region in the electromagnetic spectrum where the Balmer series lines appear is:
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Which of the following series of transitions in the spectrum of hydrogen atom falls in visible region?
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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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With respect to atomic spectrum, each line in the Lyman series is due to electrons returning
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If the wavelength of an electronic transition in He+ is 23 nm, the wavelength corresponding to same transition in hydrogen atom in nm is
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Which one of the following has the highest wavelength?

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78) There are two statements, one labelled as Assertion (A) and the other as Reason (R). Examine both the statements carefully and mark the correct choice.
(A) Hydrogen has one electron in its orbit but it produces several spectral lines.
(R) There are many excited energy levels available.
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Which of the following statements is false?