Q. No.The density \((d)\) of a nucleus varies according to the number of nucleons \((A)\) as:
1.
\(d\propto A\)
2.
\(d\propto\)\(\large\frac{1}{A}\)
3.
\(d\propto A^{1/3}\)
4.
\(d=\text{constant}\)
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| 1. | some nucleons are created |
| 2. | some nucleons are destroyed |
| 3. | energy is converted into mass |
| 4. | mass is converted into energy |
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| 1. | the atomic number increases |
| 2. | the mass number decreases |
| 3. | the proton number increases |
| 4. | the neutron number increases |
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| 1. | the outermost atomic shell |
| 2. | the innermost atomic shell |
| 3. | the conduction band |
| 4. | the nucleus |
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1. \(v_\alpha>v_\beta>v_\gamma\)
2. \(v_\gamma>v_\beta>v_\alpha\)
3. \(v_\gamma>v_\alpha>v_\beta\)
4. \(v_\beta>v_\alpha>v_\gamma\)
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1. \(10^{-9}~\text m\)
2. \(10^{-12}~\text m\)
3. \(10^{-15}~\text m\)
4. \(10^{-18}~\text m\)
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| 1. | \(_2\mathrm{He}^4\) | 2. | \(_3\mathrm{Li}^8\) |
| 3. | \(_4\mathrm{Be}^8\) | 4. | \(_8\mathrm{O}^{16}\) |
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| 1. | \(p\rightarrow n+e^+\) |
| 2. | \(n\rightarrow p+e^-\) |
| 3. | \(p\rightarrow n+e^++\nu_e\) |
| 4. | \(n\rightarrow p+e^-+\bar{\nu_e}\) |
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1. \(\alpha\)-rays
2. \(\beta\)-rays
3. \(\gamma\)-rays
4. neutrinos
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1. \(\alpha\)-decay
2. \(\beta\)-decay
3. \(\gamma\)-emission
4. neutron-emission
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