Lakhmir Singh & Manjit Kaur - Physics

Book: Lakhmir Singh & Manjit Kaur - Physics

Chapter: 3. Sources of Energy

Subject: Physics - Class 10th

Q. No. 1 of Very Short Answer Type Questions-Pg-156

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1

What type of nuclear reaction is responsible for the liberation of energy:

(a) In a nuclear reactor?


(b) In the sun?

a) Nuclear fission-Nuclear fission is a process where the nucleus of an atom is split into two or more smaller nuclei, known as fission products.

b) Nuclear fusion-nuclear fusion is a reaction in which two or more atomic nuclei come close enough to form one or more different atomic nuclei and subatomic particles.


Chapter Exercises

Very Short Answer Type Questions-Pg-121
Very Short Answer Type Questions-Pg-130
Very Short Answer Type Questions-Pg-140
Very Short Answer Type Questions-Pg-148
Very Short Answer Type Questions-Pg-156
Very Short Answer Type Questions-Pg-161
Short Answer Type Questions-Pg-122
Short Answer Type Questions-Pg-131
Short Answer Type Questions-Pg-140
Short Answer Type Questions-Pg-148
Short Answer Type Questions-Pg-157
Short Answer Type Questions-Pg-161
Questions Based on High Order Thinking Skills (HOTS)-Pg-123
Questions Based on High Order Thinking Skills (HOTS)-Pg-132
Questions Based on High Order Thinking Skills (HOTS)-Pg-142
Questions Based on High Order Thinking Skills (HOTS)-Pg-150
Questions Based on High Order Thinking Skills (HOTS)-Pg-159
Long Answer Type Questions-Pg-122
Long Answer Type Questions-Pg-131
Long Answer Type Questions-Pg-141
Long Answer Type Questions-Pg-149
Long Answer Type Questions-Pg-157
Multiple Choice Questions (MCQs)-Pg-122
Multiple Choice Questions (MCQs)-Pg-131
Multiple Choice Questions (MCQs)-Pg-141
Multiple Choice Questions (MCQs)-Pg-149
Multiple Choice Questions (MCQs)-Pg-158
Multiple Choice Questions (MCQs)-Pg-161

More Exercise Questions

1

What type of nuclear reaction is responsible for the liberation of energy:

(a) In a nuclear reactor?


(b) In the sun?
2

Which product of the nuclear fission of uranium-235 is utilized to cause further fission of its nuclei?
3

Which particles bring about the fission of uranium-235?
4

State whether the fission of uranium-235 is caused by low energy neutrons or high energy neutrons.
5

Name the type of nuclear reaction which is involved in the working of:

(a) A hydrogen bomb.


(b) An atom bomb.
6

Name the moderator used in a nuclear reactor.
7

Of what material are the control rods of a nuclear reactor made?
8

What do you think is the purpose of the thick, concrete chamber surrounding the reactor of a nuclear power plant?
9

Where, in a nuclear power station, is uranium used up?
10

State one use of nuclear fission reactions.
11

Name the unit which is commonly used for expressing the energy released in nuclear reactions.
12

How many MeV are equivalent to 1 atomic mass unit (u)?
13

Fill in the following blanks with suitable words:

(a) Splitting of a heavy nucleus into two lighter nuclei is called .............


(b) Uranium-235 atoms will split when hit by ............ This is called ....................


(c) Nuclear ................ is used in nuclear power stations for the production of electricity.


(d) In a nuclear power station, nuclear fission takes place in the .............

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