- 1(current)
Q. No.For the nuclear reaction:
\({}_{92}^{235}\mathrm{U}+ {}_{0}^{1}\mathrm{n}\rightarrow {}_{56}^{144}\mathrm{Ba}+...+3{}_{0}^{1}\mathrm{n}\)
The blank space can be filled by:
1. \({}_{26}^{89}\mathrm{Kr}\)
2. \({}_{36}^{89}\mathrm{Kr}\)
3. \({}_{26}^{90}\mathrm{Sr}\)
4. \({}_{38}^{89}\mathrm{Sr}\)
\({}_{92}^{235}\mathrm{U}+ {}_{0}^{1}\mathrm{n}\rightarrow {}_{56}^{144}\mathrm{Ba}+...+3{}_{0}^{1}\mathrm{n}\)
The blank space can be filled by:
1. \({}_{26}^{89}\mathrm{Kr}\)
2. \({}_{36}^{89}\mathrm{Kr}\)
3. \({}_{26}^{90}\mathrm{Sr}\)
4. \({}_{38}^{89}\mathrm{Sr}\)
Subtopic: Â Nuclear Energy |
 87%
From NCERT
AIPMT - 1998
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Fusion reaction takes place at a higher temperature because:
| 1. | atoms get ionized at high temperatures. |
| 2. | kinetic energy is high enough to overcome the Coulomb repulsion between nuclei. |
| 3. | molecules break up at a high temperature. |
| 4. | nuclei break up at a high temperature. |
Subtopic: Â Nuclear Energy |
 81%
From NCERT
NEET - 2011
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Which of the following is used as a moderator in nuclear reactors?
1. Plutonium
2. Cadmium
3. Heavy water
4. Uranium
Subtopic: Â Nuclear Energy |
 80%
From NCERT
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If in nuclear reactor using \(\mathrm{U}^{235}\) as fuel, the power output is \(4.8\) MW, the number of fissions per second is:
(Energy released per fission of \(\mathrm{U}^{235}=200\) MeV watts, \(1~\text{eV}= 1.6\times 10^{-19}~\text{J})\)
1. \(1.5\times 10^{17}\)
2. \(3\times 10^{19}\)
3. \(1.5\times 10^{25}\)
4. \(3\times 10^{25}\)
(Energy released per fission of \(\mathrm{U}^{235}=200\) MeV watts, \(1~\text{eV}= 1.6\times 10^{-19}~\text{J})\)
1. \(1.5\times 10^{17}\)
2. \(3\times 10^{19}\)
3. \(1.5\times 10^{25}\)
4. \(3\times 10^{25}\)
Subtopic: Â Nuclear Energy |
 71%
From NCERT
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- 1(current)
Q. No.
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