JEE PHYSICS MCQ: ATOMS

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Which of the following is incorrect, when hydrogen atom is excited from ground state to first excited state?

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Correct option: D

Its angular momentum decreases by

1.05 \times 10^{-35} \mathrm{Js}

Option D is correct because the angular momentum increases when the hydrogen atom is excited from the ground state to the first excited state, making the statement about decreasing angular momentum incorrect.

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The de-Broglie wavelength of an electron in the first Bohr orbit is The volume occupied by an atom is greater than the volume of the nucleus by a factor of about For a hydrogen atom, when electron jump from

n

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{n}=1

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\lambda_0

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\lambda_0

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{R_H} = 1.097\,\, \times \,\,{10^7}\,\,m

, first and second wavelength of Balmer series in hydrogen spectrum is When hydrogen atom is in its first excited level, its radius is its ground state radius