The Binding energy per nucleon of \(^{7}_{3}\mathrm{Li}\) and \(^{4}_{2}\mathrm{He}\) nucleon are \(5.60~\text{MeV}\) and \(7.06~\text{MeV}\), respectively. In the nuclear reaction \(^{7}_{3}\mathrm{Li} + ^{1}_{1}\mathrm{H} \rightarrow ^{4}_{2}\mathrm{He} + ^{4}_{2}\mathrm{He} +Q\), the value of energy \(Q\) released is:

1. \(19.6~\text{MeV}\) 2. \(-2.4~\text{MeV}\)
3. \(8.4~\text{MeV}\) 4. \(17.3~\text{MeV}\)
Subtopic:  Nuclear Binding Energy |
 69%
Level 2: 60%+
AIPMT - 2014
Hints

How does the binding energy per nucleon vary with the increase in the number of nucleons?
1.  decrease continuously with mass number.
2. first decreases and then increases with an increase in mass number.
3. first increases and then decreases with an increase in mass number.
4. increases continuously with mass number.
Subtopic:  Nuclear Binding Energy |
 81%
Level 1: 80%+
NEET - 2013
Hints

The mass of a Li37 nucleus is \(0.042~\text{u}\) less than the sum of the masses of all its nucleons. The binding energy per nucleon of the Li37 nucleus is near:
1. \(4.6~\text{MeV}\)
2. \(5.6~\text{MeV}\)
3. \(3.9~\text{MeV}\)
4. \(23~\text{MeV}\)

Subtopic:  Nuclear Binding Energy |
 75%
Level 2: 60%+
AIPMT - 2010
Hints

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The binding energy per nucleon in deuterium and helium nuclei are \(1.1\) MeV and \(7.0\) MeV, respectively. When two deuterium nuclei fuse to form a helium nucleus the energy released in the fusion is:
1. \(2.2\) MeV
2. \(28.0\) MeV
3. \(30.2\) MeV
4. \(23.6\) MeV

Subtopic:  Nuclear Binding Energy |
 83%
Level 1: 80%+
AIPMT - 2010
Hints

A nucleus ZXA has a mass represented by \(M(A, Z).\) If \(M_P\) and \(M_n\) denote the mass of proton and neutron respectively and BE the binding energy, then:

1. BE=[M(A,Z)-ZMp-(A-Z)Mn]c2

2. BE=[ZMp+(A-Z)Mn-M(A, Z)]c2

3. BE=[ZMp+AMn-M-(A, Z)]c2

4. BE=M(A, Z)-ZMp-(A-Z)Mn

Subtopic:  Nuclear Binding Energy |
 84%
Level 1: 80%+
AIPMT - 2007
Hints

The binding energy of deuteron is \(2.2~\text{MeV}\) and that of \(_2\mathrm{He}^{4}\) is \(28~\text{MeV}\). If two deuterons are fused to form one \(_{2}\mathrm{He}^{4}\), then the energy released is:
1. \(25.8~\text{MeV}\)
2. \(23.6~\text{MeV}\)
3. \(19.2~\text{MeV}\)
4. \(30.2~\text{MeV}\)

Subtopic:  Nuclear Binding Energy |
 75%
Level 2: 60%+
AIPMT - 2006
Hints

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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

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 |
 86%
Level 1: 80%+
AIPMT - 2004
Hints