Atoms is an important topic in the Physics section in MHT CET exam. Practising this topic will increase your score overall and make your conceptual grip on MHT CET exam stronger.
This article gives you a full set of MHT CET PYQs for Atoms with explanations for effective preparation. Practice of MHT CET Physics PYQs including Atoms questions regularly will improve accuracy, speed, and confidence in the MHT CET 2026 exam.
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MHT CET PYQs for Atoms with Solutions
1.
Bohr model is applied to a particle of mass $'m'$ and charge $'q'$ is moving in a plane under the influence of a transverse magnetic field $'B'$. The energy of the charged particle in the $nth$ level will be ($h =$ Planck's constant)- $2nhq\,B/\pi\, m$
- $nhq\,B/2\pi\, m$
- $nhq\,B/4\pi\, m$
- $nhq\,B/\pi\, m$
2.
If an electron is revolving around the hydrogen nucleus at a distance of $ 0.1 \,nm $ , what should be its speed ?- $ 2.188 \times 10^6 \,ms^{-1} $
- $ 1.094 \times 10^6 \,ms^{-1} $
- $ 4.376 \times 10^6 \,ms^{-1} $
- $ 1.59 \times 10^6 \,ms^{-1} $
3.
In hydrogen atom, radius of the smallest orbit of the electron is a0, the radius of the third orbit is
9 a0
a0
3 a0
6 a0
4.
An electron jumps from the 4th orbit to the 2nd orbit of hydrogen atom. Given the Rydberg’s constant R = 107 m-1. The frequency in Hz of the emitted radiation is (c = 3x108 m/s)
\(\frac {9}{16}\) x 1015
\(\frac {3}{16}\) x 105
\(\frac {3}{16}\) x 1015
\(\frac {9}{16}\) x 105
5.
If the electron in a hydrogen atom jumps from an orbit with level $n_{1} =2$ to an orbit with level $n_{2} =1$ the emitted radiation has a wavelength given by- $\lambda = \frac{5}{3R} $
- $\lambda = \frac{4} {3R}$
- $\lambda = \frac{R}{4}$
- $\lambda = \frac{3R}{4}$
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