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

U-238 present in the natural uranium is about:

Question # 2

The half life of uranium-238 is

Question # 3

Maric Curie and Pieree Curie discovered two new radioactive elements, which are called

Question # 4

The chemical properties of all the isotopes of an elements are

Question # 5

Neutrons are

Question # 6

Neutron was discovered by

Question # 7

In wilson cloud chamber, the air becomes saturated with:

Question # 8

Radiation detector are used to

Question # 9

The chemical properties of an element depends upon the number of

Question # 10

Phenomenon of radioactivity is due to disintegration of

Question # 11

The number of isotopes of hydrogen are

Question # 12

Alfa particles are

Question # 13

Three quarks make:

Question # 14

Curie is a unit of

Question # 15

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

Question # 16

When radioactive nucleus emits aβ-particle, the proton-neutron ratio

Question # 17

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

Question # 18

When a charged particle passes through matter, it produces ionization, this effect is used in

Question # 19

Rutherford performed an experiment on nuclear reactions in:

Question # 20

Rate of decay is actually described by.

Question # 21

Radioactivity

Question # 22

Proton was discovered by Rutherford in

Question # 23

Which of the following material has smaller has life

Question # 24

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

Question # 25

The isotope/s of hydrogen is /are:

Question # 26

Radium was discovered by:

Question # 27

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

Question # 28

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

Question # 29

γ-rays are

Question # 30

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

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 When a nucleus emits an alpha particle, it atomic mass decreased by
A. 2
B. 1
C. 4
D. 3
2 A curie represents a very strong source of
A. α-particle
B. β-particle
C. γ-particle
D. none of these
3 The number of isotopes of hydrogen are
A. 2
B. 1
C. 3
D. 4
4 The rate of decay of a radioactive substance
A. decrease exponentially with time
B. decreases linearly with time
C. increases linearly with time
D. increases exponentially with time
5 When a nucleus emits an alpha particles, its charge number decreases by
A. 3
B. 2
C. 6
D. 5
6 Beta particles are
A. hydrogen nuclei
B. helium nuclei
C. electrons
D. photons
7 The diameter of an atom is of the order
A. 10-125m
B. 10-11m
C. 10-10m
D. 10-9m
8 Nucleus of a hydrogen atom may contain:
A. One neutron only
B. Two protons and one neutron
C. Two protons and two neutrons
D. Aany of above
9 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
10 1 amu is equal to
A. 1.66 x 10-24kg
B. 1.66 x 10-19kg
C. 1.66 x 10-34kg
D. 1.66 x 10-27kg

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!