\(M_p\) 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. \(M(N,Z)= NM_n+ZM_p- Bc^2\)
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 |
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
Which rays contain (+ve) charged particle:
1. α-rays
2. β-rays
3. γ-rays
4. X-rays
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 |
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 |
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. \(10^{15}\)