For the given reaction, the particle \(\mathrm{X}\) is:
\({ }_6^{11} \mathrm{C}\rightarrow { }_5^{11}\mathrm{B}+\beta^{+}+\mathrm{X}\)
1. neutron
2. anti-neutrino
3. neutrino
4. proton

Subtopic:  Types of Decay |
 66%
Level 2: 60%+
AIPMT - 2000
Hints

In the reaction \({ }_1^2 \mathrm{H}+{ }_1^3 \mathrm{H} \longrightarrow{ }_2^4 \mathrm{He}+{ }_0^1 n \) , if the binding energies of \({ }_1^2 \mathrm{H},~_1^3 \mathrm{H} ~\text{and}~_2^4\mathrm{H}\) He are respectively \(a,b\) and \(c\) (in MeV,) then the energy (in MeV) released in this reaction is:
1. \(a+b+c\)
2. \(c+a-b\)
3. \(c-a-b\)
4. \(a+b-c\)
Subtopic:  Nuclear Binding Energy |
 77%
Level 2: 60%+
AIPMT - 2005
Hints

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 |
 61%
Level 2: 60%+
AIPMT - 2005
Hints

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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 |
 61%
Level 2: 60%+
AIPMT - 2005
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:  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:
1. \({}_{26}^{89}\mathrm{Kr}\) 2. \({}_{36}^{89}\mathrm{Kr}\)
3. \({}_{26}^{90}\mathrm{Sr}\) 4. \({}_{38}^{89}\mathrm{Sr}\)
Subtopic:  Nuclear Energy |
 89%
Level 1: 80%+
AIPMT - 1998
Hints

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Xmn emitted one αand2β particles, then it will become: 

1. Xm-4n

2. Xm-1n-1

3. Zm-4n

4. None of these

Subtopic:  Types of Decay |
 72%
Level 2: 60%+
AIPMT - 1998
Hints

When \(\mathrm{X}\rightarrow {}_{7}^{14}\mathrm{N}+2\beta^{-}\) then the number of neutrons in \(\mathrm{X}\) will be:
1. \(3\)
2. \(5\)
3. \(7\)
4. \(9\)

Subtopic:  Types of Decay |
 61%
Level 2: 60%+
AIPMT - 1998
Hints

If in a nuclear fusion process. the masses of the fusing nuclei be \(m_1\) and \(m_2\) and the mass of the resultant nucleus be \(m_3,\) then:
1. \( m_3=\left|m_1-m_2 \right|\) 2. \( m_3<\left ( m_1+m_2 \right ) \)
3. \( m_3>\left ( m_1+m_2 \right ) \) 4. \( m_3=\left ( m_1+m_2 \right ) \)
Subtopic:  Nuclear Binding Energy |
 79%
Level 2: 60%+
AIPMT - 2004
Hints

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A nucleus represented by the symbol \({}_{Z}^{A}\mathrm{X}\) has:
1. \(Z\) protons and \(A-Z\) neutrons
2. \(Z\) protons and \(A\) neutrons
3. \(A\) protons and \(Z-A\) neutrons
4. \(Z\) neutrons and \(A-Z\) protons
Subtopic:  Nuclear Binding Energy |
 91%
Level 1: 80%+
AIPMT - 2004
Hints