List of top Physics Questions on Nuclear fission asked in UP Board XII

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.
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.
Define mass defect and binding energy.
In the given nuclear process, particle \( W \) is: \[ ^2\text{He}^4 + _zX^A \rightarrow _{z+2}Y^{A+3} + W \]

Explain nuclear fission and nuclear fusion with examples. 
 

 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.