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QJEE MAIN 2023
A nucleus with mass number 242 and binding energy per nucleon as 7.6 MeV breaks into fragment each with mass number 121. If each fragment...
JEE MainPhysicsEasy
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QJEE MAIN 2023
For a nucleus having mass number A and atomic number Z A. The surface energy per nucleon (bs) = a1A2/3 B. The Coulomb contribution...
JEE MainPhysicsMedium
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QJEE MAIN 2023
A radioactive element ${ }_{92}^{242} \mathrm{X}$ emits two $\alpha$-particles, one electron and two positrons. The product nucleus is represented by ${ }_P^{234} \mathrm{Y}$. The value...
JEE MainPhysicsEasy
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QJEE MAIN 2023
If a radioactive element having half-life of 30 min is undergoing beta decay, the fraction of radioactive element remains undecayed after 90 min. will be...
JEE MainPhysicsEasy
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QJEE MAIN 2024
If three helium nuclei combine to form a carbon nucleus then the energy released in this reaction is ............ × 〖10〗^(-2) MeV. (Given 1u=931MeV/c^2, atomic...
JEE MainPhysicsMedium
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QJEE MAIN 2024
Which of the following nuclear fragments corresponding to nuclear fission between neutron $\left(\begin{array}{l}1 \\ 0\end{array} \mathrm{n}\right)$ and uranium isotope $\left({ }_{92}^{252} \mathrm{U}\right)$ is correct:
JEE MainPhysicsEasy
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QJEE MAIN 2024
The explosive in a Hydrogen bomb is a mixture of ${ }_1 \mathrm{H}^2,{ }_1 \mathrm{H}^3$ and ${ }_3 \mathrm{Li}^6$ in some condensed form. The chain...
JEE MainPhysicsMedium
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QJEE MAIN 2025
Energy released when two deuterons $\left({ }_{1} H^{2}\right)$ fuse to form a helium nucleus $\left({ }_{2} H e^{4}\right)$ is : (Given : Binding energy per...
JEE MainPhysicsEasy
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QJEE MAIN 2024
In a nuclear fission process, a high mass nuclide $(\mathrm{A} \approx 236)$ with binding energy $7.6 \mathrm{MeV} /$ Nucleon dissociated into middle mass nuclides (...
JEE MainPhysicsEasy
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QJEE MAIN 2025
Match the LIST-I with LIST-II
Choose the correct answer from the options given below:
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