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Published on: 21/09/2019
Nuclear Physics
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
How does the repulsive force between the two deuterium atoms overcome during nuclei fusion process?
2.
Write the conditions necessary for nuclear fusion.
3.
What is meant by mass defect?
4.
Which material protects us from radiation?
5.
When and where was the first nuclear reactor built?
6.
Which hazardous radiation is the cause for the genetic disease?
7.
If A is a radioactive element which emits an \(\alpha\) - particle and produces 104Rf 259. Write the atomic number and mass number of the element A.
8.
Write any two elements which are used for inducing radioactivity?
9.
What is meant by critical size?
10.
What do you mean by Q value of nuclear reaction?
1.
If the charge of both the nucleus is positive, according to electrostatic theory, when they come closer they tend to repel each other. This repulsive force will be overcome by the kinetic energy of the nuclei at higher temperature of the order of 107 to 109 K.
2.
(i) Extreme high temperature of the order of 107 to 109 K.
(ii) A high pressure to push the hydrogen nuclei closer to fuse with each other.
3.
The mass of daughter nucleus formed during nuclear reaction (fission and fusion) is lesser than the sum of masses of two parent nuclei. This difference in mass is called mass defect.
4.
Lead.
5.
1942 at Chicago, USA.
6.
Gamma Radiation
7.
Atomic number -106 ; Mass number - 263 (In alpha decay atomic number decrease by two and mass number decrease by four)
8.
Boron, Aluminium
9.
An uncontrolled nuclear chain reaction can occur only when the uranium is greater than a certain minimum size. This is called critical size.
10.
It is the energy released or absorbed in the nuclear reaction.
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards