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Q. No.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
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 |
69%
Level 2: 60%+
AIPMT - 2001
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: Nuclear Energy |
75%
Level 2: 60%+
AIPMT - 2003
Hints
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