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

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Pre General Science Physics Chapter 21 Nuclear Physics

00:00
Question # 1

An alpha particle has a charge of

Question # 2

Neutrons are

Question # 3

Radioactivity is

Question # 4

The number of protons inside a nucleus is called

Question # 5

For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is

Question # 6

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

Question # 7

Mass of neutron is

Question # 8

Which of the following material has longer half life

Question # 9

Neon gas have three isotopes whose atomic numbers are

Question # 10

The distance travelled byα-particle in a medium before coming to rest, is called

Question # 11

Curie is a unit of

Question # 12

When a nucleus emits an alpha particles, its charge number decreases by

Question # 13

U-238 present in the natural uranium is about:

Question # 14

The chemical properties of an element depends upon the number of

Question # 15

A curie represents a very strong source of

Question # 16

Charge on proton is

Question # 17

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

Question # 18

The rate of decay of a radioactive substance

Question # 19

Structure of the nucleus was explained by

Question # 20

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

Question # 21

In his experiment on nuclear reactions, Rutherford bombardedα particles on:

Question # 22

Radioactivity was discovered by:

Question # 23

Beta particles are

Question # 24

According to Rutherford atomic model, the positive charge in an atom

Question # 25

Neutron was disvovered by:

Question # 26

For Protium, the mass defect is:

Question # 27

γ-rays are

Question # 28

If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by

Question # 29

Neutron was discovered in

Question # 30

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

Submit

Prepare Complete Set Wise ECAT Pre General Science Physics Chapter 21 Nuclear Physics MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Pre General Science Physics Chapter 21 Nuclear Physics MCQ`s Test

  • L
    LAVANYA 31 - May - 2018 04 Min 45 Sec 110/120
  • U
    Ukasha Rana 29 - Apr - 2022 10 Min 50 Sec 100/120
  • G
    Gorak Danda 24 - Jun - 2024 08 Min 03 Sec 80/120
  • H
    haseeb 12 - Sep - 2021 07 Min 18 Sec 65/120
  • C
    Ch Iftihar 25 - Jan - 2022 07 Min 34 Sec 65/120
  • A
    Aleem Tahir 20 - Apr - 2021 10 Min 50 Sec 65/120
  • H
    Hamza Mukhtair 14 - Jul - 2022 06 Min 35 Sec 50/120
  • I
    ifrah Sheerazi 24 - Jun - 2021 10 Min 50 Sec 50/120
  • U
    umar 12 - Aug - 2021 10 Min 50 Sec 45/120
  • N
    Neha Khan 02 - Dec - 2021 10 Min 50 Sec 40/120
  • F
    Faisal Mehrban 22 - Jun - 2021 10 Min 50 Sec 40/120
  • S
    Sýèd Zàhàd 24 - Jun - 2022 10 Min 50 Sec 30/120
  • S
    Sami Saleem 23 - May - 2023 10 Min 50 Sec 25/120
  • F
    Faraz Ahmad 06 - May - 2021 10 Min 50 Sec 15/120
  • M
    Malik Farhan 23 - May - 2021 07 Min 32 Sec 10/120

ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Binding energy per nucleus is
A. greater for heavy nucleus
B. least for heavy nucleus
C. greatest for light nuclei
D. decreases for medium weight niclei
2 The isotope/s of hydrogen is /are:
A. Protium
B. Deuterium
C. Tritium
D. Both (A) and (B)
3 Curie is a unit of
A. reluctance
B. resistivity
C. binding energy
D. radioactivity
4 When thorium nucleus emits aβ-particle, the daughter nucleus is called:
A. Protactinium
B. Actinium
C. Uranium
D. Radium
5 A curie represents a very strong source of
A. α-particle
B. β-particle
C. γ-particle
D. none of these
6 The mass of the nucleus is always less than the total man of the protons and neutron that make up the nucleus. The difference of the two masses is called
A. nuclear fission
B. nuclear fusion
C. man defect
D. radioactivity
7 Radiation detector are used to
A. measure intensity of radiation
B. measure energy of radiation
C. difference between different types of radiation
D. all the above
8 The number of isotopes of hydrogen are
A. 2
B. 1
C. 3
D. 4
9 The half life of uranium-238 is
A. 6.2 x 109years
B. 4.5 x 109days
C. 4.5 x 109years
D. 1.3 x 106years
10 Examples of moderators used in a fission reactor is/are:
A. Water
B. Heavy water
C. Carbon
D. Hydrocarbon

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!