List of top Physics Questions on Nuclear fission

Explain nuclear fission and nuclear fusion with examples. 
 

Define mass defect and binding energy.
Assertion : Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion.
Reason (R): For heavy nuclei, binding energy per nucleon increases with increasing \( Z \) while for light nuclei, it decreases with increasing \( Z \).
What is the energy released by 1 gram of natural Uranium, assuming 200 MeV is released in each fission event and the reasonable isotope \(^{235}\mathrm{U}\) has an abundance of 0.7% by weight in natural Uranium? Choose the correct answer. (Take Avogadro's number, \(N_A = 6.022 \times 10^{23}\ \text{mole}^{-1}\)):
On which principle does a nuclear reactor work?
What do you mean by Nuclear fission ? In the fission of \(U^{235}\) nucleus, 200 MeV energy is produced. Power of 4 MW is obtained by a reactor. How many nuclei are fissioned per sec in the reactor ?
What is the difference between nuclear fusion and nuclear fission? Find the value of the energy \( Q \) released with the help of the given nuclear fusion reaction:
\[ \text{1} \, ^1\text{H}_2 + \, ^1\text{H}_3 ⇒ \, ^2\text{He}_4 + \, ^1\text{n}^1 + Q \] Given:
Mass of \( ^1\text{H}_2 = 2.0141 \, \text{amu} \)
Mass of \( ^1\text{H}_3 = 3.0160 \, \text{amu} \)
Mass of \( ^2\text{He}_4 = 4.0026 \, \text{amu} \)
Mass of \( ^1\text{n}^1 = 1.0087 \, \text{amu} \)
1 amu = 931 MeV
What is meant by mass-defect? In a nuclear fission reaction, find out the value of the fission energy \( Q \).
The binding energy per nucleon of \(\alpha\)-particle (\(_2^4\text{He}\)) is 7 MeV. What is its total binding energy?
Explain the meaning of binding energy of a nucleus. Write the dependency of binding energy per nucleon on the mass number of the nucleus.
On which principle does a nuclear reactor work?
What is the meaning of nucleon? What is the mass number of nucleus? Write down the relation between mass number and radius of nucleus and show that the density of nucleus does not depend on mass number.
Explain the meaning of binding energy of a nucleus. In the nuclear reaction \(\ ^3Li^6 + \ ^0n^1 \longrightarrow \ ^2He^4 + \ ^1H^3 \), calculate the energy released in joules. Mass of \( \ ^3Li^6 = 6.015126~\text{u} \), Mass of \( \ ^2He^4 = 4.002604~\text{u} \), Mass of \( \ ^1H^3 = 3.016049~\text{u} \), Mass of \( \ ^0n^1 = 1.008665~\text{u} \), and 1u = 931 MeV.
Consider the nuclear fission reaction\( \text{n}^{1} + \text{U}^{235} \rightarrow \text{Ba}^{144} + \text{Kr}^{89} + 3 \text{n}.\) Assuming all the kinetic energy is carried away by the fast neutrons only and total binding energies of \( \text{U}^{235} \), \( \text{Ba}^{144} \), and \( \text{Kr}^{89} \) to be 1800 MeV, 1200 MeV, and 780 MeV respectively, the average kinetic energy carried by each fast neutron is (in MeV)
Represent the variation of binding energy per nucleon with mass number. On the basis of it, explain the following: (i) Nuclear fission
(ii) Nuclear fusion
(iii) Nuclear energy
What is the difference between nuclear fission and nuclear fusion? Explain each of them with the help of an appropriate example. Why is in both incidents the nuclear energy released?
In nuclear reaction, \( _{7}^{15}N + _{0}^{1}n \rightarrow _{6}^{14}C + P \), what is P?
If the mass defect of a nucleus is \(2 \times 10^{-6}\) kg, then calculate its binding energy in (i) joule and (ii) electron-volt.
Find the ratio of de-Broglie wavelength associated with a proton and an \( \alpha \)-particle having the same kinetic energy.
In the given nuclear process, particle \( W \) is: \[ ^2\text{He}^4 + _zX^A \rightarrow _{z+2}Y^{A+3} + W \]

 The atomic mass of \( ^{16}O \) is 16.0000 amu. Calculate its binding energy per nucleon. Mass of electron = 0.00055 amu, mass of proton = 1.007593 amu, mass of neutron = 1.008982 amu, and 1 amu = 931 MeV. 
 

A coil has a resistance of 10 Ω and inductance of 0.4 Henry. It is connected to an AC source of 6.5 V, 30 Hz. Find the average power consumed in the circuit.

What is total internal reflection and critical angle? What is the working principle of Optical Fibre.