The stable nucleus that has a radius half of the radius of is:
1.
2.
3.
4.
Which of the following is used as a moderator in nuclear reactors?
1. Plutonium
2. Cadmium
3. Heavy water
4. Uranium
The binding energy per nucleon of deuterium and helium atom is 1.1 MeV and 7.0 MeV. If two deuterium nuclei fuse to form a helium atom, the energy released is:
1. 19.2 MeV
2. 23.6 MeV
3. 26.9 MeV
4. 13.9 MeV
In a fission reaction,
\(^{236}_{92}U\rightarrow ~^{117}X~+~^{117}Y~+~^1_0n~+~^1_0n,\) the binding energy per nucleon of X and Y is 8.5 MeV whereas that of \(^{236}U\) is 7.6 MeV. The total energy liberated will be about:
1. 2000 MeV
2. 200 MeV
3. 2 MeV
4. 1 keV
A nuclear reaction along with the masses of the particle taking part in it is as follows;
The energy Q liberated in the reaction is:
1. 1.234 MeV
2. 0.931 MeV
3. 0.465 MeV
4. 1.862 MeV
When a deuterium is bombarded on nucleus, an -particle is emitted, then the product nucleus is:
1.
2.
3.
4.
The mass of is 15.00011 amu, mass of is 15.99492 amu and = 1.00783 amu. Determine the binding energy of the last proton of \({ }_8 O_{16}\).
1. 2.13 MeV
2. 0.13 MeV
3. 10 MeV
4. 12.13 MeV
The power obtained in a reactor using disintegration is 1000 kW. The mass decay of \(U^{235}\) per hour is:
1. 1 microgram
2. 10 microgram
3. 20 microgram
4. 40 microgram
In the nuclear reaction: , the term X will be:
1.
2.
3.
4.
In a radioactive decay process, the negatively charged emitted -particles are:
1. | The electrons present inside the nucleus. |
2. | The electrons produced as a result of the decay of neutrons inside the nucleus. |
3. | The electrons produced as a result of collisions between atoms. |
4. | The electrons orbiting around the nucleus. |