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Q. No.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
\(M_p\) 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 \(2\)
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
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
Subtopic: Types of Decay |
74%
Level 2: 60%+
AIPMT - 2001
Hints
\(M_n~\text{and}~M_p\) represent the mass of the neutron and proton respectively. An element having mass \(M\) has \(N\) neutrons and \(Z\)-protons, then the correct relation will be:
1. \(M <\left \{N.M_n+Z.M_p \right \}\)
2. \(M >\left \{N.M_n+Z.M_p \right \}\)
3. \(M =\left \{N.M_n+Z.M_p \right \}\)
4. \(M =N\left \{M_n+M_p \right \}\)
1. \(M <\left \{N.M_n+Z.M_p \right \}\)
2. \(M >\left \{N.M_n+Z.M_p \right \}\)
3. \(M =\left \{N.M_n+Z.M_p \right \}\)
4. \(M =N\left \{M_n+M_p \right \}\)
Subtopic: Nuclear Binding Energy |
83%
Level 1: 80%+
AIPMT - 2001
Hints
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