ECAT Pre General Science Chapter 21 online mcq test with answers for Physics chapter 21 (Nuclear Physics)

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	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
2	The penetration power ofβ-particle is	A. zero B. less thanα-particle C. equal toα-particle D. greater thanα-particle
3	The distance travelled byα-particle in a medium before coming to rest, is called	A. range ofγ-particle B. range of neutrons C. range of particle D. none of these
4	For Protium, the mass defect is:	A. Infinite B. Zero C. Very large D. A few grams
5	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
6	Structure of the nucleus was explained by	A. J.J Thomson B. Bohr C. Millikan D. Rutherford
7	Alfa , beta and gamma rays are emitted from a radio-active substance	A. spontaneously B. when it is heated C. when it is exposed to light D. When it interacts with the other particle
8	When certain nucleus emits anα particle, its mass number:	A. Increases by one B. Decreases by one C. Remain same D. Decreases by four
9	When thorium nucleus emits aβ-particle, the daughter nucleus is called:	A. Protactinium B. Actinium C. Uranium D. Radium
10	Neutron was discovered in	A. 1915 B. 1920 C. 1925 D. 1932

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

ECAT Pre General Science Physics Chapter 21 MCQ Test With Answer

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

ECAT Pre General Science Physics Chapter 21 Nuclear Physics

The half lie of radium-226 is

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

The isotope/s of hydrogen is /are:

Neutron was discovered by

Fraction of the decaying atoms per unit time is called

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

The most abundant isotope of neon is

The chemical properties of all the isotopes of an elements are

The reciprocal of decay constant λ of a radioactive material is:

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

Curie is a unit of

Which of the following material has smaller has life

Radioactivity

Proton was discovered by Rutherford in

The rate of decay of a radioactive substance

Radioactivity was discovered by

Mass of proton is of order of

A mass spectrograph sort out

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

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

Radioactivity is

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

Pair production take place when energy ofγ-rays photon is

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

When a nucleus emits an alpha particle, it atomic mass decreased by

Gamma rays consist of steam of

The nucleus/nuclei of hydrogen is/are:

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

When thorium nucleus emits aβ-particle, the daughter nucleus is called:

Neon gas have three isotopes whose atomic numbers are

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

Set 1

Set 2

Set 3

Set 4

Set 5

Topic Test

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

ECAT Physics Chapter 21 Important MCQ's

Test Questions

Is this page helpful?

Share your comments & questions here