ECAT Pre Computer Science Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

Try The MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

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ECAT Physics Chapter 21 Nuclear Physics

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Question # 1

There is present in paraffin a large amount of:

Question # 2

Charge on proton is

Question # 3

In 1932 Chadwick discovered

Question # 4

The energy acquired by a mass of 1g moving with the speed of light is

Question # 5

Referring to the above figure, we can say that of all the elements, the most stable element is

Question # 6

Radiation detector are used to

Question # 7

Neutron was discovered in

Question # 8

Neutron was disvovered by:

Question # 9

Different radioactive material have

Question # 10

The total charge of any nucleus is given as

Question # 11

Radioactivity was discovered by

Question # 12

In radio-active decay, the original element which disintegrate to another element is called

Question # 13

Which of these is not a radiation detector

Question # 14

Binding energy per nucleus is

Question # 15

Marie curie and Pierre curie discovered:

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Which of the following material has longer half life
A. radium
B. polonium
C. radium
D. uranium
2 Phenomenon of radioactivity is due to disintegration of
A. nucleus
B. neutron
C. proton
D. molecule
3 Nucleon means:
A. Only electrons
B. Only neutrons
C. Only protons
D. Both (A ) and (C)
4 The amount of energy equivalent to 1 a.m.u is
A. 9.315 Mev
B. 93.15 Mev
C. 931.5 Mev
D. 2.22 Mev
5 The nucleus left after the emission of some radiation is called:
A. Parent nucleus
B. Daughter necleus
C. Mother necleus
D. Any of these
6 When radioactive nucleus emits aβ-particle, the proton-neutron ratio
A. decrease
B. increase
C. same
D. none of these
7 The half lie of radium-226 is
A. 238 years
B. 4.5 x 109days
C. 1620 years
D. 332 years
8 Rutherford performed an experiment on nuclear reactions in:
A. 1718 A.D
B. 1818 A.D
C. 1918 A.D
D. 2001 A.D.
9 U-238 present in the natural uranium is about:
A. 59%
B. 0.007%
C. 99%
D. 39%
10 Radioactivity is
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'

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