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The number of waves made by a Bohr electron in one complete revolution in its 4th  orbit is

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Important Questions on Atomic Structure

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The region of electromagnetic spectrum and the energy of photon, respectively, of the line obtained at 1.4×106 m-1 in the atomic spectrum of hydrogen are ________

h=6.626×10-34 J.s

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What would be the wavelength of the spectral line in Balmer series of the spectrum, having the longest wavelength? Given RH=109677 cm-1
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If a cricket ball of weight 0.1 kg has an uncertainty of 0.15 m·s-1 in its velocity, then the uncertainty in the position of the cricket ball is       

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If the uncertainties in position and momentum are equal, the uncertainty in the velocity is ________
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If it is known that an electron is revolving around the nucleus at a speed of 0.95 km·s-1, with an accuracy of 0.02%, then find its position. Given mass of the electron is 9.1×10-31 kg and h=6.6×10-34 kg·m2·s-1
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According to quantum mechanics, in which of the following, all the information about the electron is present?
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The correct order of total number of node of atomic orbitals is _______