Nuclear Physics, Numerical Problems
This page consists of solved numerical problems included in the Physics Course for grade 12.
|S.No||Description of problem|
|Problem 1||Find the mass defect and binding energy of helium nucleus, 2He4.|
|Problem 2||A certain radioactive isotope has half-life of 8 hours. A solution containing 500 million atoms of this isotope is prepared. How many atoms of this isotope have not disintegrated (a) 8 hours (b) 24 hours?|
Write the nuclear equations for beta decay of the following;
(a)>82Pb210 (b) 83Bi210 (c)90Th210 (d)93Np239
|Problem 4||Calculate the total energy released if 1 kg of U235 undergoes fission. Taking the disintegration energy per event to be Q = 208 MeV.|
|Problem 5||Find the energy released in the following fission reaction;|
0n1 + 92U235 —–> 36Kr92 + 56Ba141 + 30n1 + Q
Find the energy released in the fusion reaction;
Complete the following nuclear reactions.
3Li6 is bombarded by deuteron. The reaction gives two α particles along with the release of energy equal to 22.3 MeV. Knowing masses of deuteron and α particles, determine mass of lithium isotope of 3Li6.
Find the energy released in when β-decay changes 90Th 234 into 91Pa234. Mass of 90Th 234 = 234.0436 u and 91Pa234 = 234.042762 u.
Find out the K.E to which a proton must be accelerated to induce the following nuclear reaction. Li7 (p, n) Be7.