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:  Nuclear Energy |
 85%
From NCERT
NEET - 2020
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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:  Nuclear Energy |
 81%
From NCERT
AIPMT - 2011
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In any fission process the ratio

 mass of fission products  mass of parent nucleus  is:

1. Greater than 1

2. Depends on the mass of the parent nucleus

3. Equal to 1

4. Less than 1

Subtopic:  Nuclear Energy |
 58%
From NCERT
AIPMT - 2005
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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:  Nuclear Energy |
 57%
From NCERT
AIPMT - 2005
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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:  Nuclear Energy |
 74%
From NCERT
AIPMT - 2003
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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:  Nuclear Energy |
 79%
From NCERT
AIPMT - 2002
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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:  Nuclear Energy |
 66%
From NCERT
AIPMT - 2001
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Nuclear – fission is best explained by:

1. Liquid droplet theory

2. Yukawa π - meson theory

3. Independent particle model of the nucleus

4. Proton-proton cycle

Subtopic:  Nuclear Energy |
From NCERT
AIPMT - 2000
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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. \({}_{38}^{89}\mathrm{Sr}\)

Subtopic:  Nuclear Energy |
 87%
From NCERT
AIPMT - 1998
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