Physics · 2024
JEE Main · 29 January 2024, Shift 1 · Q47
The explosive in a Hydrogen bomb is a mixture of _1 H^2,_1 H^3 and _3 Li^6 in some condensed form. The chain reaction is given by _3 Li^6+_0 n^1 →_2…
The explosive in a Hydrogen bomb is a mixture of $\displaystyle { }_1 \mathrm{H}^2,{ }_1 \mathrm{H}^3$ and $\displaystyle { }_3 \mathrm{Li}^6$ in some condensed form. The chain reaction is given by
$$\begin{aligned}
& { }_3 \mathrm{Li}^6+{ }_0 \mathrm{n}^1 \rightarrow{ }_2 \mathrm{He}^4+{ }_1 \mathrm{H}^3 \\
& { }_1 \mathrm{H}^2+{ }_1 \mathrm{H}^3 \rightarrow{ }_2 \mathrm{He}^4+{ }_0 \mathrm{n}^1
\end{aligned}
$$
During the explosion the energy released is approximately
[Given ; $\displaystyle \mathrm{M}(\mathrm{Li})=6.01690 \mathrm{amu}, \mathrm{M}\left({ }_1 \mathrm{H}^2\right)=2.01471 \mathrm{amu}, \mathrm{M}\left({ }_2 \mathrm{He}^4\right)=4.00388$ amu, and $\displaystyle 1 \mathrm{amu}=931.5 \mathrm{MeV}$ ]
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 22.22 \mathrm{MeV}$
More from Atoms and Nuclei
- Energy released when two deuterons (_1 H^2) fuse to form a helium nucleus (_2 He^4) is: (Given: Binding energy per nucleon of _1 H^2=1.1 MeV and…2025
- Assuming the validity of Bohr's atomic model for hydrogen like ions the radius of Li^++ ion in its ground state is given by 1/X a_0, where X= ____.…2025
- In the hydrogen atom, the electron makes a transition from the higher orbit (i) to a lower orbit (f). The ratio of the radius of the orbits in given…2026
- In a nuclear fission reaction of an isotope of mass M, three similar daughter nuclei of same mass are formed. The speed of a daughter nuclei in terms…2024
- Hydrogen atom is bombarded with electrons accelerated through a potential difference of V, which causes excitation of hydrogen atoms. If the…2024
- An atom _3^8 X is bombarded by shower of fundamental particles and in 10 s this atom absorbed 10 electrons, 10 protons and 9 neutrons. The percentage…2026
- The radius of a nucleus of mass number 64 is 4.8 fermi. Then the mass number of another nucleus having radius of 4 fermi is 1000/x, where x is ____.2024
- The longest wavelength associated with Paschen series is: (Given R_H=1.097 × 10^7 SI unit)2024
JEE Main 2024 Physics question, with the answer from NTA’s final answer key. Where our answers come from.