- 1(current)
Q. No.When a uranium isotope \(_{92}^{235}\mathrm{U}\) is bombarded with a neutron, it generates \(_{36}^{89}\mathrm{Kr}\), three neutrons and:
| 1. | \(_{40}^{91}\mathrm{Zr}\) | 2. | \(_{36}^{101}\mathrm{Kr}\) |
| 3. | \(_{36}^{103}\mathrm{Kr}\) | 4. | \(_{56}^{144}\mathrm{Ba}\) |
Subtopic: Â Nuclear Energy |
 85%
Level 1: 80%+
NEET - 2020
Hints
Links
Fusion reaction takes place at high temperature because:
| 1. | atoms get ionized at high temperature |
| 2. | kinetic energy is high enough to overcome the Coulomb repulsion between nuclei |
| 3. | molecules break up at high temperature |
| 4. | nuclei break up at high temperature |
Subtopic: Â Nuclear Energy |
 82%
Level 1: 80%+
AIPMT - 2011
Hints
In any fission process the ratio
1. Greater than 1
2. Depends on the mass of the parent nucleus
3. Equal to 1
4. Less than 1
Subtopic: Â Nuclear Energy |
 60%
Level 2: 60%+
AIPMT - 2005
Hints
Fission of nuclei is possible because the binding energy per nucleon in them:
| 1. | decreases with the mass number at low mass numbers |
| 2. | increases with the mass number at low mass numbers |
| 3. | decreases with the mass number at high mass numbers |
| 4. | increases with the mass number at high mass numbers |
Subtopic: Â Nuclear Energy |
 60%
Level 2: 60%+
AIPMT - 2005
Hints
Solar energy is mainly caused due to:
| 1. | burning of hydrogen in the oxygen |
| 2. | fission of uranium present in the sun |
| 3. | fusion of protons during synthesis of heavier elements |
| 4. | gravitational contraction |
Subtopic: Â Nuclear Energy |
 75%
Level 2: 60%+
AIPMT - 2003
Hints
Which of the following are suitable for the fusion process?
| 1. | light nuclei |
| 2. | heavy nuclei |
| 3. | the element must be lying in the middle of the periodic table |
| 4. | middle elements which are lying on the binding energy curve |
Subtopic: Â Nuclear Energy |
 81%
Level 1: 80%+
AIPMT - 2002
Hints
The energy released in nuclear fission is due to:
| 1. | some mass is converted into energy |
| 2. | the total binding energy of fragments is more than the B.E of the parental element |
| 3. | total B.E of fragments is less than the B.E of parental element |
| 4. | total B.E of fragments is equal to the B.E of parental element |
Subtopic: Â Nuclear Energy |
 68%
Level 2: 60%+
AIPMT - 2001
Hints
Nuclear–fission is best explained by:
| 1. | Liquid droplet theory. |
| 2. | Yukawa \(\pi\text-\)meson theory. |
| 3. | Independent particle model of the nucleus. |
| 4. | Proton-proton cycle. |
Subtopic: Â Nuclear Energy |
Level 3: 35%-60%
AIPMT - 2000
Hints
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:
\({}_{92}^{235}\mathrm{U}+ {}_{0}^{1}\mathrm{n}\rightarrow {}_{56}^{144}\mathrm{Ba}+...+3{}_{0}^{1}\mathrm{n}\)
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 |
 89%
Level 1: 80%+
AIPMT - 1998
Hints
- 1(current)
Q. No.
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