- 1(current)
Q. No.Fusion processes, like combining two deuterons to form a \({He}\)-nucleus are impossible at ordinary temperatures and pressure. The reasons for this can be traced to the fact:
Choose the correct option:
| (a) | nuclear forces have short-range. |
| (b) | nuclei are positively charged. |
| (c) | the original nuclei must be completely ionized before fusion can take place. |
| (d) | the original nuclei must first break up before combining with each other. |
Choose the correct option:
| 1. | (a) and (c) | 2. | (a) and (d) |
| 3. | (b) and (d) | 4. | (a) and (b) |
Subtopic: Â Nuclear Energy |
From NCERT
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NEET 2026 - Target Batch
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NEET 2026 - Target Batch
Which of the following need not be necessarily obeyed in a nuclear reaction?
| 1. | The conservation of charge |
| 2. | The conservation of mass |
| 3. | The conservation of mass energy |
| 4. | The conservation of momentum |
Subtopic: Â Nuclear Energy |
 51%
From NCERT
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Hints
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The average energy of a neutron produced in fission of \(^{235}_{92}\mathrm{U}\) in MeV is:
1. \(2\) MeV
2. \(3\) MeV
3. \(4\) MeV
4. \(6\) MeV
1. \(2\) MeV
2. \(3\) MeV
3. \(4\) MeV
4. \(6\) MeV
Subtopic: Â Nuclear Energy |
 57%
From NCERT
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- 1(current)
Q. No.
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