- 1(current)
Q. No.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: Nuclear Binding Energy |
81%
From NCERT
NEET - 2024
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Hints
Please attempt this question first.
Select the correct statements among the following:
Choose the most appropriate answer from the options given below:
1. A, B and C only
2. A, B and D only
3. A and B only
4. C and D only
| A. | slow neutrons can cause fission in \(U_{92}^{235}\) than fast neutrons. |
| B. | \(\text{α-rays}\) are helium nuclei. |
| C. | \(\text{β-rays}\) are fast-moving electrons or positrons. |
| D. | \(\gamma-\text{rays}\) are electromagnetic radiations of wavelengths larger than X-rays. |
1. A, B and C only
2. A, B and D only
3. A and B only
4. C and D only
Subtopic: Nuclear Binding Energy |
62%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
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: Nuclear Binding Energy |
63%
From NCERT
NEET - 2021
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NEET 2025 - Target Batch
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NEET 2025 - Target Batch
- 1(current)
Q. No.
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