Select Chapter Topics:
Q. No.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 |
89%
Level 1: 80%+
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
If the half-life of a radionuclide is 77 days, then its decay constant is:
1. 0.003/day
2. 0.006/day
3. 0.009/day
4. 0.012/day
76%
Level 2: 60%+
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
The half-life of a sample of a radioactive element containing 4 × 1016 active nuclei, is 10 days. The number of decayed nuclei after 30 days will be:
1.
2.
3.
4.
54%
Level 3: 35%-60%
AIPMT - 2002
Hints
A sample of a radioactive element has a mass of 10 gm at an instant t = 0. The approximate mass of this element in the sample after two mean lives is:
1. 1.35 gm
2. 2.50 gm
3. 3.70 gm
4. 6.30 gm
Level 3: 35%-60%
AIPMT - 2003
Hints
Which of the following rays are not electromagnetic waves?
1. \({X}\text-\)rays
2. \(\gamma\text-\)rays
3. \(\beta\text-\)rays
4. Heat rays
1. \({X}\text-\)rays
2. \(\gamma\text-\)rays
3. \(\beta\text-\)rays
4. Heat rays
Subtopic: Types of Decay |
58%
Level 3: 35%-60%
AIPMT - 2003
Hints
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 |
77%
Level 2: 60%+
AIPMT - 2003
Hints
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 |
56%
Level 3: 35%-60%
AIPMT - 2003
Hints
Select Chapter Topics:
© 2026 GoodEd Technologies Pvt. Ltd.