1. Inform you about time table of exam.
2. Inform you about new question papers.
3. New video tutorials information.
- Binding Energy per Nucleon and Its Variation with Mass Number
Derive an expression for the total energy of electron in ‘n' th Bohr orbit. Hence show that energy of the electron is inversely proportional to the square of principal quantum number. Also define binding energy.
Write symbolically the nuclear β+ decay process of `""_6^11C` Is the decayed product X an isotope or isobar of (`""_6^11C`)? Given the mass values m (`""_6^11C`) = 11.011434 u and m (X) = 11.009305 u. Estimate the Q-value in this process.
Obtain the binding energy (in MeV) of a nitrogen nucleus`(""_7^14N)`, given `m(""_7^14N)`=14.00307 u
The neutron separation energy is defined as the energy required to remove a neutron from the nucleus. Obtain the neutron separation energies of the nuclei `""_20^41Ca` and `""_13^27 Al` from the following data:
`m(""_20^40Ca) = 39.962591 u`
`m(""_20^41Ca) = 40.962278 u
`m(""_13^26Al) = 25.986895 u`
`m(""_13^27Al) = 26.981541 u`
Consider the fission of `""_92^238U` by fast neutrons. In one fission event, no neutrons are emitted and the final end products, after the beta decay of the primary fragments, are `""_58^140Ce` and `""_44^99Ru`. Calculate Q for this fission process. The relevant atomic and particle masses are
`m(""_92^238U)` =238.05079 u
`m(""_58^140Ce)` =139.90543 u
`m(""_44^99Ru)` = 98.90594 u
Obtain the binding energy of the nuclei `""_56^26Fe` and `""_83^209Bi`in units of MeV from the following data:
`m(""_26^56Fe)` = 55.934939 u `m(""_83^209Bi)`= 208.980388 u