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Atoms and Nuclei PYQs - Last 10 Years

JEE Advanced / Physics / Modern Physics / 21 recent questions

PhysicsModern Physics2017-2026
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Practice 21 JEE Advanced Physics questions from Atoms and Nuclei. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

21
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Physics / Modern Physics
2017-2026
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9
Last 5 Years
2022-2026
21
Last 10 Years
2017-2026

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21PYQs
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9 in last 5 years21 in last 10 years

Last 10 Years Atoms and Nuclei Questions

Showing 21 of 21 filtered questions.

1Atoms And Nuclei
A nuclear reactor starts producing a radioactive nuclide X from t = 0, at a constant rate of α per second. Each decay of X produces energy E0, which is utilized to heat a liquid of mass m and specific heat s. Assuming no heat loss from the ...
MCQ+3 / -12026
2Atoms And Nuclei
Consider a hydrogen atom with $v_k, r_k,$ and $K_k$ denoting the velocity, orbital radius and kinetic energy of the electron in the $k^{{th}}$ orbit, respectively. The electron undergoes a transition from the $n^{{th}}$ orbit, emitting radi...
MCQM+4 / -12026
3Atoms And Nuclei
List-I shows various functional dependencies of energy $(E)$ on the atomic number $(Z)$. Energies associated with certain phenomena are given in List-II.
Choose the option that describes the correct match between the entries in List-I to th...
MCQ+4 / -12025
4Atoms And Nuclei
A particle of mass $m$ is moving in a circular orbit under the influence of the central force $F(r)=-k r$, corresponding to the potential energy $V(r)=k r^2 / 2$, where $k$ is a positive force constant and $r$ is the radial distance from th...
MCQM+4 / -22024
5Atoms And Nuclei
In a radioactive decay process, the activity is defined as $A=-\frac{d N}{d t}$, where $N(t)$ is the number of radioactive nuclei at time $t$. Two radioactive sources, $S_1$ and $S_2$ have same activity at time $t=0$. At a later time, the a...
INTEGER+4 / -02023
6Atoms And Nuclei
List-I shows different radioactive decay processes and List-II provides possible emitted particles. Match each entry in List-I with an appropriate entry from List-II, and choose the correct option.

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MCQ+3 / -12023
7Atoms And Nuclei
In a radioactive decay chain reaction, ${ }_{90}^{230} \mathrm{Th}$ nucleus decays into ${ }_{84}^{214} \mathrm{Po}$ nucleus. The ratio of the number of $\alpha$ to number of $\beta^{-}$particles emitted in this process is ________.
INTEGER+3 / -12022
8Atoms And Nuclei
The binding energy of nucleons in a nucleus can be affected by the pairwise Coulomb repulsion. Assume that all nucleons are uniformly distributed inside the nucleus. Let the binding energy of a proton be $E_{b}^{p}$ and the binding energy o...
MCQM+4 / -22022
9Atoms And Nuclei
The minimum kinetic energy needed by an alpha particle to cause the nuclear reaction ${ }_{7}^{16} \mathrm{~N}+$ ${ }_{2}^{4} \mathrm{He} \rightarrow{ }_{1}^{1} \mathrm{H}+{ }_{8}^{19} \mathrm{O}$ in a laboratory frame is $n$ (in $M e V$. A...
INTEGER+3 / -02022
10Atoms And Nuclei
A heavy nucleus N, at rest, undergoes fission N \(\to\) P + Q, where P and Q are two lighter nuclei. Let \(\delta\) = MN \(-\) MP \(-\) MQ, where MP, MQ and MN are the masses of P, Q and N, respectively. EP and EQ are the kinetic energies o...
MCQM+4 / -22021
11Atoms And Nuclei
Which of the following statement(s) is(are) correct about the spectrum of the hydrogen atom?
MCQM+4 / -22021
12Atoms And Nuclei
A heavy nucleus Q of half-life 20 minutes undergoes alpha-decay with probability of 60% and beta-decay with probability of 40%. Initially, the number of Q nuclei is 1000. The number of alpha-decays of Q in the first one hour is
MCQ+3 / -12021
13Atoms And Nuclei
In an X-ray tube, electrons emitted from a filament (cathode) carrying current I hit a target (anode) at a distance d from the cathode. The target is kept at a potential V higher than the cathode resulting in emission of continuous and char...
MCQM+4 / -22020
14Atoms And Nuclei
A particle of mass m moves in circular orbits with potential energy V(r) = Fr, where F is a positive
constant and r is its distance from the origin. Its energies are calculated using the Bohr model. If the
radius of the particle’s orbit is ...
MCQM+4 / -22020
15Atoms And Nuclei
Suppose a \(_{88}^{226}Ra\) nucleus at rest and in ground state undergoes \(\alpha\)-decay to a \(_{86}^{222}Rn\) nucleus in its excited state. The kinetic energy of the emitted \(\alpha\) particle is found to be 4.44 MeV. $$_{86}^{222}Rn...
INTEGER+3 / -02019
16Atoms And Nuclei
A free hydrogen atom after absorbing a photon of wavelength \(\lambda\)a gets excited from the state n = 1 to the state n = 4. Immediately after that the electron jumps to n = m state by emitting a photon of wavelength \(\lambda\)e. Let t...
MCQM+4 / -12019
17Atoms And Nuclei
In a radioactive sample, \({}_{19}^{40}K\) nuclei either decay into stable \({}_{20}^{40}Ca\) nuclei with decay constant 4.5 \(\times\) 10-10 per year or into stable \({}_{18}^{40}Ar\) nuclei with decay constant 0.5 \(\times\) 10-10 per...
MCQ+3 / -12019
18Atoms And Nuclei
Consider a hydrogen-like ionized atom with atomic number \(Z\) with a single electron. In the emission spectrum of this atom, the photon emitted in the \(n=2\) to \(n=1\) transition has energy \(74.8eV\) higher than the photon emitted in th...
INTEGER+3 / -02018
19Atoms And Nuclei
In a radioactive decay chain, \({}_{90}^{232}Th\) nucleus decays to \({}_{82}^{212}Pb\) nucleus. Let \({N_\alpha }\) and \({N_\beta }\) be the number of \(\alpha\) and \({\beta ^ - }\) particles, respectively, emitted in this decay process...
MCQM+4 / -12018
20Atoms And Nuclei
An electron in a hydrogen atom undergoes a transition from an orbit with quantum number \({n_i}\) to another with quantum number \({n_f}\). \({V_i}\) and \({V_f}\) are respectively the initial and final potential energies of the electron. I...
INTEGER+3 / -02017
21Atoms And Nuclei
\({}^{131}{\rm I}\) is an isotope of Iodine that \(B\) decays to an isotope of Xenon with a half-life of \(8\) days. A small amount of a serum labelled with \({}^{131}{\rm I}\) is injected into the blood of a person. The activity of the am...
INTEGER+3 / -02017