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

The nucleus/nuclei of hydrogen is/are:

Question # 2

Neon gas have three isotopes whose atomic numbers are

Question # 3

For an atom having atomic number Z and atomic weight A, the number of electron in an atoms

Question # 4

The range of particle depends upon the factor

Question # 5

The chemical properties of an element depends upon the number of

Question # 6

How much time, theα-particle more massive than an electron

Question # 7

Nucleus of a hydrogen atom may contain:

Question # 8

Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called

Question # 9

Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:

Question # 10

Examples of moderators used in a fission reactor is/are:

Question # 11

Alfa particles are

Question # 12

γ-rays are

Question # 13

A mass difference of 0.0012 u is equivalent to and energy of:

Question # 14

When certain nucleus emits anα particle, its mass number:

Question # 15

Rate of decay is actually described by.

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 When a charged particle passes through matter, it produces ionization, this effect is used in
A. fission reaction
B. reactor
C. radiation detector
D. fusion reaction
2 A pair of quark and antiquark makes a:
A. Meson
B. Baryon
C. Proton
D. Neutron
3 γ-rays behave like a particle because they explain the
A. Compton effect
B. Photoelectric effect
C. Pair-production
D. all the above
4 The range ofβ-particle in air is greater than that ofα-particle by
A. 1000 times
B. 100 times
C. 15 times
D. 10 times
5 Nuclei that have the same charge number but different mass number are called
A. isotones
B. isomers
C. isotopes
D. isobars
6 The isotope/s of hydrogen is /are:
A. Protium
B. Deuterium
C. Tritium
D. Both (A) and (B)
7 The energy acquired by a mass of 1g moving with the speed of light is
A. 3 x 108J
B. 9 x 1013J
C. 3 x 1013J
D. 9 x 1016J
8 Which are not the elementary particles?
A. Photons
B. Leptons
C. Hadrons
D. Quarks
9 Alfa particles are
A. hydrogen nuclei
B. helium nuclei
C. electrons
D. photons
10 The number of isotopes of hydrogen are
A. 2
B. 1
C. 3
D. 4

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