- 1(current)
Q. No.Consider the following nuclear reaction:
\({}^{238}_{}\mathrm{U} \rightarrow {}^{234}_{}\mathrm{Th} + {}^{4}_{}\mathrm{He}\)
Take masses of \({}^{238}\mathrm{U},{}^{238}\mathrm{Th}\) and \({}^{4}\mathrm{He}\) as \(238.050~\text{u},\) \(234.043~\text{u}\) and \(4.003~\text{u},\) respectively. The \(Q\) value for the reaction, in keV, is:
(given: \(1~\text{u}=931.5\) MeV c-2)
1. \(3740\)
2. \(3726\)
3. \(3730\)
4. \(3736\)
\({}^{238}_{}\mathrm{U} \rightarrow {}^{234}_{}\mathrm{Th} + {}^{4}_{}\mathrm{He}\)
Take masses of \({}^{238}\mathrm{U},{}^{238}\mathrm{Th}\) and \({}^{4}\mathrm{He}\) as \(238.050~\text{u},\) \(234.043~\text{u}\) and \(4.003~\text{u},\) respectively. The \(Q\) value for the reaction, in keV, is:
(given: \(1~\text{u}=931.5\) MeV c-2)
1. \(3740\)
2. \(3726\)
3. \(3730\)
4. \(3736\)
Subtopic: Â Nuclear Binding Energy |
 52%
Level 3: 35%-60%
NEET - 2026
Please attempt this question first.
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Please attempt this question first.
Water is used as a coolant in a nuclear reactor because of its:
1. high thermal expansion coefficient
2. high specific heat capacity
3. low density
4. low boiling point
1. high thermal expansion coefficient
2. high specific heat capacity
3. low density
4. low boiling point
Subtopic: Â Nuclear Binding Energy |
 69%
Level 2: 60%+
NEET - 2024
Hints
A nucleus with mass number \(240\) breaks into fragments each of mass number \(120.\) The binding energy per nucleon of unfragmented nuclei is \(7.6~\text{MeV}\) while that of fragments is \(8.5~\text{MeV}.\) The total gain in the binding energy in the process is:
| 1. | \(804~\text{MeV}\) | 2. | \(216~\text{MeV}\) |
| 3. | \(0.9~\text{MeV}\) | 4. | \(9.4~\text{MeV}\) |
Subtopic: Â Nuclear Binding Energy |
 66%
Level 2: 60%+
NEET - 2021
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