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

00:00
Question # 1

The isotope/s of hydrogen is /are:

Question # 2

Electrons are

Question # 3

Gamma rays consist of steam of

Question # 4

Charge on proton is

Question # 5

Fraction of the decaying atoms per unit time is called

Question # 6

In radioactive decay, the new element which is formed due to the disintegration of original element is called

Question # 7

There is present in paraffin a large amount of:

Question # 8

The most abundant isotope of neon is

Question # 9

Nucleus of a hydrogen atom may contain:

Question # 10

The number of all the protons and neutrons in a nucleus is known as

Question # 11

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

Question # 12

The chemical properties of all the isotopes of an elements are

Question # 13

Curie is a unit of

Question # 14

The chemical behaviour of an atom is determined by

Question # 15

The rate of decay of a radioactive substance

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 A particle having the mass of electron and charge of a proton is called a
A. photon
B. position
C. antiproton
D. antineutrino
2 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
3 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
4 For Protium, the mass defect is:
A. Infinite
B. Zero
C. Very large
D. A few grams
5 For an atom having atomic number Z and atomic weight A, the number of electron in an atoms
A. A - Z
B. A + Z
C. Z
D. A
6 Radioactivity was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
7 Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:
A. 50
B. 100
C. 150
D. 200
8 Phenomenon of radioactivity is due to disintegration of
A. nucleus
B. neutron
C. proton
D. molecule
9 The chemical behaviour of an atom is determined by
A. binding energy
B. atomic number
C. mass number
D. number of isotopes
10 Marie curie and Pierre curie discovered:
A. Uranium
B. Polonium
C. Radium
D. Both (A) and (C)

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