Q. Range of visible light is from

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Q. Expression for nth radius of atom was derived by

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Q. Cathode rays can produce fluorescence in

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Q. Dual nature of matter was experimentally verified by striking electron on

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Q. Surface where probability for finding electron is zero between two orbitals is called

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Q. When electron jumps from excited state to a ground state observed spectra is

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Q. N+l value of 7s orbital is

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Q. Spectral lines of hydrogen atom which are present in visible region are named as

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Q. Discovery of neutron was done in year

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Q. Value of waves produced by macroscopic particles is

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Q. Uncertainty principle is applicable to

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Q. Electric properties of cathode rays were discovered by

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Q. Value of Planck's constant is

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Q. Electrons produced in X rays are accelerated by

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Q. For metal under consideration in X Rays, constants are

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Q. Letter 'f' in azimuthal quantum number represents

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Q. Davisson performed his experiment in

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Q. Distance in lines of hydrogen spectrum increases when there is/are

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Q. Current does not flow in discharge tube even at voltage of

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Q. Element which has [Ar]4s2 electronic configuration is

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