(A) Statement $1$ is true because in nuclear fission of heavy nuclei,the binding energy per nucleon increases,resulting in a release of energy. Simila

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Statement $1$ is true and Statement $2$ is false.

(A) Statement $1$ is true because in nuclear fission of heavy nuclei,the binding energy per nucleon increases,resulting in a release of energy. Similarly,in nuclear fusion of light nuclei,the binding energy per nucleon increases,also resulting in a release of energy.Statement $2$ is false. The binding energy per nucleon $(E_{bn})$ versus mass number $(A)$ graph shows that for light nuclei,$E_{bn}$ increases rapidly with $A$. For heavy nuclei,$E_{bn}$ decreases slowly as $A$ increases beyond $A = 56$. It does not depend solely on the atomic number $Z$ in the manner described,and the trend stated is incorrect.

Class 12 Physics Nuclei Nuclear Fission, Fusion and Nuclear Reactor

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Statement $1$: Energy is released during the fission of heavy nuclei or the fusion of light nuclei.
Statement $2$: Binding energy per nucleon increases with an increase in $Z$ for heavy nuclei,whereas it decreases with an increase in $Z$ for light nuclei.

A
Statement $1$ is true and Statement $2$ is false.
B
Statement $1$ is false and Statement $2$ is true.
C
Statement $1$ and $2$ are true and Statement $2$ is the correct explanation for Statement $1$.
D
Statement $1$ and $2$ are true but Statement $2$ is not the correct explanation for Statement $1$.

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Nuclear Fission, Fusion and Nuclear Reactor

In the nuclear fusion reaction $_1^2H + _1^3H \to _2^4He + n$,given that the repulsive potential energy between the two nuclei is $7.7 \times 10^{-14} \ J$,the temperature at which the gases must be heated to initiate the reaction is nearly? [Boltzmann's constant $k = 1.38 \times 10^{-23} \ J/K$]

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$A$ nuclear reactor generates power by fission of ${}_{92}U^{235}$ into two equal fragments of ${}_{46}Pd^{116}$ with the emission of two $\gamma$-rays of $5.2 \text{ MeV}$ each and three neutrons. The average binding energies per nucleon of ${}_{92}U^{235}$ and ${}_{46}Pd^{116}$ are $7.2 \text{ MeV}$ and $8.2 \text{ MeV}$ respectively. The usable energy released per fission event is ......... $\text{MeV}$.

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The most suitable element for nuclear fission is the element with an atomic number near

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$A$ nucleus is bombarded with a high-speed neutron so that the resulting nucleus is a radioactive one. This phenomenon is called:

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In a reactor, $2 \, kg$ of ${ }_{92} U ^{235}$ fuel is fully used up in $30$ days. The energy released per fission is $200 \, MeV$. Given that the Avogadro number, $N_A = 6.023 \times 10^{26} \, \text{per kilo mole}$ and $1 \, eV = 1.6 \times 10^{-19} \, J$. The power output of the reactor is close to $..... \, MW$.

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Statement $1$: Energy is released during the fission of heavy nuclei or the fusion of light nuclei.Statement $2$: Binding energy per nucleon increases with an increase in $Z$ for heavy nuclei,whereas it decreases with an increase in $Z$ for light nuclei.

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In the nuclear fusion reaction $_1^2H + _1^3H \to _2^4He + n$,given that the repulsive potential energy between the two nuclei is $7.7 \times 10^{-14} \ J$,the temperature at which the gases must be heated to initiate the reaction is nearly? [Boltzmann's constant $k = 1.38 \times 10^{-23} \ J/K$]

The most suitable element for nuclear fission is the element with an atomic number near

$A$ nucleus is bombarded with a high-speed neutron so that the resulting nucleus is a radioactive one. This phenomenon is called:

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Statement $1$: Energy is released during the fission of heavy nuclei or the fusion of light nuclei.
Statement $2$: Binding energy per nucleon increases with an increase in $Z$ for heavy nuclei,whereas it decreases with an increase in $Z$ for light nuclei.