The energy required in \(\text{MeV/c}^2 \) to separate \({ }_8^{16} \mathrm{O}\) into its constituents is:
(Given: mass defect for \({ }_8^{16} \mathrm{O}=0.13691~ \text{amu}\))
1. \(127.5\)
2. \(120.0\)
3. \(222.0\)
4. \(119.0\)

Subtopic:  Mass-Energy Equivalent |
 68%
From NCERT
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A nuclear reaction is given by;
\({}_{Z}^{A}\mathrm{X}\rightarrow {}_{Z+1}^{A}\mathrm{Y}+{}_{-1}^{0}\mathrm{e}+\nu\)
represents:
1. \(\beta\text-\)decay
2. \(\gamma\text-\)decay
3. fusion
4. fission
Subtopic:  Types of Decay |
 90%
From NCERT
AIPMT - 2003
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The mass number of a nucleus is:

1. always less than its atomic number.
2. always more than its atomic number.
3. sometimes equal to its atomic number.
4. sometimes less than and sometimes more than its atomic number.
Subtopic:  Nuclear Binding Energy |
 53%
From NCERT
AIPMT - 2003
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The mass of a proton is \(1.0073\) u and that of a neutron is \(1.0087\) u (u = atomic mass unit). The binding energy of \({}_{2}^{4}\mathrm{He}\) is: (Given: helium nucleus mass ≈ \(4.0015\) u)
1. \(0.0305\) J 2. \(0.0305\) erg
3. \(28.4\) MeV 4. \(0.061\) u
Subtopic:  Nuclear Binding Energy |
 75%
From NCERT
AIPMT - 2003
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Which of the following rays are not electromagnetic waves?
1. \({X}\text-\)rays
2. \(\gamma\text-\)rays
3. \(\beta\text-\)rays
4. Heat rays
Subtopic:  Types of Decay |
 57%
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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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 |
 90%
From NCERT
AIPMT - 2004
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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 |
 78%
From NCERT
AIPMT - 2004
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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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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 |
 65%
From NCERT
AIPMT - 2000
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