ECAT Pre General Science Physics Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 21 Nuclear Physics

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

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ECAT Pre General Science Physics Chapter 21 Nuclear Physics

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Question # 1

Different radioactive material have

Question # 2

Nuclei that have the same charge number but different mass number are called

Question # 3

Electrons are

Question # 4

The most abundant isotope of neon is

Question # 5

The penetration power ofβ-particle is

Question # 6

Radiation detector are used to

Question # 7

Which of the following material has longer half life

Question # 8

Radium was discovered by:

Question # 9

After alpha decay the atomic number of the atom

Question # 10

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

Question # 11

A particle having the mass of electron and charge of a proton is called a

Question # 12

The number of protons inside a nucleus is called

Question # 13

Mass of neutron is

Question # 14

Nucleon means:

Question # 15

The range ofβ-particle in air is greater than that ofα-particle by

Question # 16

The time required for a radioactive material to decrease in active by one half is called

Question # 17

Neutron was suggested to be in the nucleus by:

Question # 18

The range of particle depends upon the factor

Question # 19

Neutron was discovered by

Question # 20

The nucleus left after the emission of some radiation is called:

Question # 21

The nuclei of an element having the same charge number but different mass numbers are called:

Question # 22

Which are not the elementary particles?

Question # 23

Binding energy per nucleus is

Question # 24

How many isotopes of helium are present?

Question # 25

The number of isotopes of hydrogen are

Question # 26

A pair of quark and antiquark makes a:

Question # 27

β-particles are easily deflected by collisions than heavy

Question # 28

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

Question # 29

The chemical properties of an element depends upon the number of

Question # 30

Neutron was discovered in

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 The chemical properties of an element depends upon the number of
A. electron
B. position
C. photons
D. neutrons
2 Alfa particles are
A. hydrogen nuclei
B. helium nuclei
C. electrons
D. photons
3 Which of these is not a radiation detector
A. Wilson cloud chamber
B. cyclotron acceleration
C. Geiger Miller counter
D. solid state detector
4 Maric Curie and Pieree Curie discovered two new radioactive elements, which are called
A. polonium uranium
B. uranium and radium
C. polonium and radium
D. none of these
5 The number of protons inside a nucleus is called
A. mass number
B. atomic weight
C. atomic number
D. none of these
6 How much time, theα-particle more massive than an electron
A. 600
B. 7000
C. 5000
D. 15000
7 Neutron was discovered in
A. 1915
B. 1920
C. 1925
D. 1932
8 The chemical behaviour of an atom is determined by
A. binding energy
B. atomic number
C. mass number
D. number of isotopes
9 The isotope/s of hydrogen is /are:
A. Protium
B. Deuterium
C. Tritium
D. Both (A) and (B)
10 A particle having the mass of electron and charge of a proton is called a
A. photon
B. position
C. antiproton
D. antineutrino

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