JEE PHYSICS MCQ: ATOMS

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Statement-I: An electron in hydrogen atom passes fromn

=4

n=1

level. The maximum number of photons that can be emitted is 6.

Statement-II: maximum number of photons omitted can only be 4.

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Correct option: C

Statement-I is true and Statement-II is false

Statement-I is true and Statement-II is false because the maximum number of photons emitted when an electron transitions from n=4 to n=1 is 6, calculated by N = n(n-1)/2.

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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