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Atomic Physics — BITSAT Physics PYQs

18 previous year questions from Atomic Physics with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

18 questionsPhysicsSolutions on every page

Which of the following transitions of He ⁺ ion will give rise to spectral line which has same wavelength as the spectral line in hydrogen atom?

BITSAT 2024 Solution View → 2

The ratio of the shortest wavelength of Balmer series to the shortest wavelength of Lyman series for hydrogen atom is:

BITSAT 2024 Solution View → 3

The minimum excitation energy of an electron revolving in the first orbit of hydrogen is

BITSAT 2024 Solution View → 4

The angular momentum for the electron in Bohr's orbit is L. If the electron is assumed to revolve in second orbit of hydrogen atom, then the change in angular momentum will be:

BITSAT 2023 Solution View → 5

A 12.5 eV electron beam is used to bombard gaseous hydrogen at room temperature. The number of spectral lines emitted will be:

BITSAT 2023 Solution View → 6

The stopping potential (V₀ ) versus frequency (v) of a graph for photoelectric effect in a metal. From the graph, the planck's constant (h) is.

BITSAT 2022 Solution View → 7

The significant result deduced from the Rutherford's scattering experiment is that

BITSAT 2021 Solution View → 8

The energy of electron in the nth orbit of hydrogen atom is expressed as E _ n = -13.6 n ² eV . The shortest and longest wavelength of Lyman series will be

BITSAT 2020 Solution View → 9

12 eV energy is given to electron in third orbit of H -atom, then final energy of electron when it ionise from third orbit, is

BITSAT 2019 Solution View → 10

The total energy of an electron in the first excited state of hydrogen is about - 3 . 4 eV . Its kinetic energy in this state is

BITSAT 2017 Solution View → 11

Monochromatic radiation of wavelength λ is incident on a hydrogen sample in ground state. Hydrogen atom absorbs a fraction of light and subsequently emits radiations of six di

BITSAT 2017 Solution View → 12

An α -particle after passing through potential difference of V volt collides with a nucleus. If the atomic number of the nucleus is Z , then distance of closest approach is

BITSAT 2017 Solution View → 13

If the series limit wavelength of Lyman series for the hydrogen atom is 912 Å, then the series limit wavelength for Balmer series of hydrogen atoms is

BITSAT 2016 Solution View → 14

One of the lines in the emission spectrum of Li ²⁺ has the same wavelength as that of the 2^ nd line of Balmer series in hydrogen spectrum. The electronic transition corresponding

BITSAT 2015 Solution View → 15

If hydrogen atom, an electron jumps from bigger orbit to smaller orbit so that radius of smaller orbit is one-fourth of radius of bigger orbit. If speed of electron in bigger orbit

BITSAT 2014 Solution View → 16

The energies of energy levels A , B and C for a given atom are in the sequence E _ A < E _ B < E _ C . If the radiations of wavelengths ₁, ₂ and ₃ are emitted due to the atomic tra

BITSAT 2011 Solution View → 17

Hydrogen atom in ground state is excited by a monochromatic radiation of =975 . Number of spectral lines in the resulting spectrum emitted will be

BITSAT 2010 Solution View → 18

Taking Rydberg's constant R _ H =1.097 10⁷ ~m , first and second wavelength of Balmer series in hydrogen spectrum is

BITSAT 2009 Solution View →

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