Q. Elements employed by Moseley for production of X-rays were

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Q. Motion which is responsible for doublet line structure in spectrum is

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Q. When gamma radiations are emitted from copper it is changed into

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Q. Background in atomic absorption spectrum is

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Q. P-sub shell have shape of a/an

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Q. Energy change according to Bohr is given by

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Q. Each orbit possesses

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Q. Value of wave number when electron of hydrogen jumps from n2 to n1 is

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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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