Q. Glow in discharge tube disappears when pressure is

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Q. Electron is lighter than proton about

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Q. By help of Moseley law atomic number of

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Q. Elements were properly arranged in Mendeleev periodic table by

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Q. B' in Moseley equation is

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Q. In derivation of de Broglie equation wavelength depends upon

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Q. Neutron was discovered by

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Q. Level of energy of all three p-orbitals in absence of magnetic field is

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Q. Letter 'p' for azimuthal quantum number represents

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Q. Chamber used in Millikan oil drop method has

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Q. Radius of electron is inversely proportional to

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Q. Proton from paraffin can be expelled by

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Q. Vacuum permittivity is represented by

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Q. In absence of magnetic field, all three p-orbitals are called

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Q. Value of energy of electron for fourth orbit of hydrogen atom is

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Q. Uncertainty principle can be easily understandable with help of

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Q. Quantum numbers are solution to

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Q. Lines which shows spectrum of hydrogen atom are

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Q. For discovery of neutron stream of particles was used which are

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Q. Spectral lines obtained for hydrogen atom are divided into

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