Nuclear Energy

What type of nuclei is (preferably) needed for slowing down fast neutrons?

Can uncontrolled chain reaction can be controlled? explain.

What is the underlying principle of the atomic bomb in respect of nuclear energy.

What is the proton-proton chain reaction? Describe this process.

The _____ is an example of endoergic nuclear reaction.

Describe the endoergic nuclear reaction?

When the energy value Q is positive, the reaction is positive.

When the energy value Q is positive, the reaction is_____

Hydrogen bomb has been prepared by the fusion of:

Describe the working of Hydrogen bomb.

The explosion of hydrogen bomb is based on the principle of:

The binding energies per nucleon for a deuteron and an $\alpha$-particle are $1.1 \mathrm{MeV}$ and $7.1 \mathrm{MeV}$ respectively. The energy released in the fusion reaction ${}_1\mathrm{H}^2+{}_1\mathrm{H}^2\to {}_2\mathrm{He}^4$ is $Q$. Then find the value of $\frac{Q}{3}$ in $\mathrm{MeV}$

The average energy released in each fusion reaction is about _____ $\times {10}^{-12} \mathrm{J}$.

(Two decimals should be there in the answer.)

Which of the following is/are correct?
i. Chain reaction takes place in a nuclear reactor and an atomic bomb.
ii. The chain reaction in a nuclear reactor is controlled.
iii. The chain reaction in a nuclear reactor is not controlled.
iv. No chain reaction takes place in an atom bomb.

Proton - Proton chain reaction is an example of nuclear _____.

A nuclear reaction is represented by the following equation: ${}_0{}^1\mathrm{n}+{}_{80}{}^{198}\mathrm{Hg}\to {}_{79}{}^{197}\mathrm{Au}+{}_1{}^2\mathrm{H}$. This reaction is an example of

If $200 \mathrm{MeV}$ of energy is released in the fission of one nucleus of ${}_{92}{}^{235}\mathrm{U}$, the number of nuclei that must undergo fission to release an energy of $1000 \mathrm{J}$ is

If $200 \mathrm{MeV}$ energy is released in the fission of a single $U^{235}$ nucleus, the number of fissions required per second to produce $1$ kilowatt power shall be (Given $\left.1 \mathrm{eV}=1.6\times {10}^{-19} \mathrm{J}\right):$

The binding energies per nucleon for a deuteron and an $\mathrm{\alpha }$ -particle are $1.1 \mathrm{MeV}$ and $7.1 \mathrm{MeV}$ respectively. The energy released in the fusion reaction ${}_1\mathrm{H}^2+{}_1\mathrm{H}^2\to {}_2\mathrm{He}^4$ is $\mathrm{Q}$. Then find the value of $\frac{\mathrm{Q}}{3}$ in $\mathrm{MeV}$.