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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

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

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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

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

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\(M_p\) denotes the mass of a proton and \(M_n\) that of a neutron. A given nucleus, of binding energy \(B\), contains \(Z\) protons and \(N\) neutrons. The mass \(M(N,Z)\) of the nucleus is given by:
(\(c\) is the velocity of light )
1. \(M(N,Z)= NM_n+ZM_p+ Bc^2\)
2. \(M(N,Z)= NM_n+ZM_p-\frac{B}{c^2}\)
3. \(M(N,Z)= NM_n+ZM_p+\frac{B}{c^2}\)
4. \(M(N,Z)= NM_n+ZM_p- Bc^2\)

Subtopic:  Nuclear Binding Energy |
 87%
Level 1: 80%+
AIPMT - 2004
Hints

If a radioactive element emitted one \(\alpha\) and one \(\beta\text-\)particle, then the mass number of the daughter element is:
1. decreased by \(4\)
2. increased by \(4\)
3. decreased by \(2\)
4. increased by \(2\)

Subtopic:  Types of Decay |
 88%
Level 1: 80%+
AIPMT - 1999
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:  Nuclear Energy |
 81%
Level 1: 80%+
AIPMT - 2002
Hints

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If a deuteron is bombarded on a 8O16 nucleus then an α-particle is emitted. The product nucleus is:

1. 7N13

2. 5B10

3. 4Be9

4. 7N14

Subtopic:  Types of Decay |
 81%
Level 1: 80%+
AIPMT - 2002
Hints