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Q. No.The volume occupied by an atom is greater than the volume of the nucleus by a factor of about:
1. \(10\)
2. \(10^5\)
3. \(10^{10}\)
4. \(10^{15}\)
1. \(10\)
2. \(10^5\)
3. \(10^{10}\)
4. \(10^{15}\)
Subtopic: Â Mass-Energy Equivalent |
 60%
From NCERT
AIPMT - 2003
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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: Â Mass-Energy Equivalent |
 68%
From NCERT
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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: Â Nuclear Energy |
 74%
From NCERT
AIPMT - 2003
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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: Â 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: Â Nuclear Binding Energy |
 78%
From NCERT
AIPMT - 2004
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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. \(a+b-c\)
1. \(a+b+c\)
2. \(c+a-b\)
3. \(c-a-b\)
4. \(a+b-c\)
Subtopic: Â Nuclear Binding Energy |
 75%
From NCERT
AIPMT - 2005
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As compared to 12C atom, 14C atom has:
| 1. | two extra protons and two extra electrons |
| 2. | two extra protons but no extra electron |
| 3. | two extra neutrons and no extra electron |
| 4. | two extra neutrons and two extra electrons |
Subtopic: Â Nuclear Energy |
 83%
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Let \(F_{pp}, F_{pn}~\text{and}~F_{nn}\) denote the magnitudes of the net force by a proton on a proton, by a proton on a neutron and by a neutron on a neutron respectively. Neglect gravitational force. When the separation is \(1~\text{fm}\),
| 1. | \(F_{pp}> F_{pn}=F_{nn}\) | 2. | \(F_{pp}= F_{pn}=F_{nn}\) |
| 3. | \(F_{pp}> F_{pn}>F_{nn}\) | 4. | \(F_{pp}< F_{pn}=F_{nn}\) |
Subtopic: Â Nuclear Binding Energy |
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Two protons are kept at a separation of \(10\) nm. Let \(F_n\) and \(F_e\) be the nuclear force and the electromagnetic force between them.
| 1. | \(F_e=F_n\) |
| 2. | \(F_e>>F_n\) |
| 3. | \(F_e<<F_n\) |
| 4. | \(F_e\) and \(F_n\) differ only slightly |
Subtopic: Â Nuclear Binding Energy |
 69%
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Which of the following is a wrong description of binding energy of a nucleus?
| 1. | it is the energy required to break a nucleus into its constituent nucleons. |
| 2. | it is the energy made available when free nucleons combine to form a nucleus. |
| 3. | it is the sum of the rest mass energies of its nucleons minus the rest mass energy of the nucleus. |
| 4. | it is the sum of the kinetic energy of all the nucleons in the nucleus. |
Subtopic: Â Nuclear Binding Energy |
 75%
From NCERT
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