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TN 10th Tamil நாகரிகம், நாடு, சமூகம் - கவிதை பேழை (செய்யுள்) -முத்தொள்ளாயிரம் Sample Question Papers Study Material - QB365 Set A

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10th Standard

TN 10th Tamil அறம்,தத்துவம், சிந்தனைகவிதை பேழை (செய்யுள்) -அக்கறை Sample Question Papers Study Material - QB365 Set A

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TN 10th Tamil உயிரின்ஓசை - துணைப்பாடம் -பிருமம் Sample Question Papers Study Material - QB365 Set A

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10th Standard

TN 10th Tamil அறம், தத்துவம், சிந்தனை - கவிதை பேழை (செய்யுள்) -தேம்பாவணி * Sample Question Papers Study Material - QB365 Set A

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TN 10th Tamil கலை, அழகியல், புதுமை - உரைநடை உலகம் -பன்முகக் கலைஞர் Sample Question Papers Study Material - QB365 Set A

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10th Science - Nuclear Physics Two Marks Questions

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.

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Std: 10th Standard - Science

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Questions:

Generic 2

8 x 2 = 16

How does the repulsive force between the two deuterium atoms overcome during nuclei fusion process?

Write the conditions necessary for nuclear fusion.

What is meant by mass defect?

Which material protects us from radiation?

When and where was the first nuclear reactor built?

Which hazardous radiation is the cause for the genetic disease?

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.

Write any two elements which are used for inducing radioactivity?

Generic 7

2 x 7 = 14

What is meant by critical size?

10.

What do you mean by Q value of nuclear reaction?

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Answers Key:

Generic 2

8 x 2 = 16

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.

(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.

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.

Lead.

1942 at Chicago, USA.

Gamma Radiation

Atomic number -106 ; Mass number - 263 (In alpha decay atomic number decrease by two and mass number decrease by four)

Boron, Aluminium

Generic 7

2 x 7 = 14

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.