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	An alpha particle has a charge of	A. +2e B. -2e C. -e D. +3e
2	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
3	Which are not the elementary particles?	A. Photons B. Leptons C. Hadrons D. Quarks
4	Radioactivity	A. is exhibited more by semiconductors in general B. in exhibited more by the element when they are coupled C. with other radioactive elements by a covalent bond D. is an atomic property of radioactive elements
5	If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by	A. -4 B. 4 C. 2 D. 1
6	Gamma rays consist of steam of	A. electron B. proton C. photons D. all of these
7	Neutron was discovered in	A. 1915 B. 1920 C. 1925 D. 1932
8	The counter, which also provides the power to the G.M. tube is called:	A. Thin mica window B. thin glass window C. Airy window D. Wooden window
9	A curie represents a very strong source of	A. α-particle B. β-particle C. γ-particle D. none of these
10	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

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 range of particle depends upon the factor

Marie curie and Pierre curie discovered:

Beta particles are

Neutron was suggested to be in the nucleus by:

Neutron was discovered in

Alfa , beta and gamma rays are emitted from a radio-active substance

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

Which of the following material has longer half life

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

A mass spectrograph sort out

A mass difference of 0.0012 u is equivalent to and energy of:

The chemical behaviour of an atom is determined by

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

When certain nucleus emits anα particle, its mass number:

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

When certain nucleus emits aβ-particles, is mass number:

Gamma rays consist of steam of

The chemical properties of all the isotopes of an elements are

The half lie of radium-226 is

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

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

Neutron was discovered by

The half life of uranium-238 is

For Protium, the mass defect is:

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

There is present in paraffin a large amount of:

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

Nucleus of a hydrogen atom may contain:

Neon gas have three isotopes whose atomic numbers are

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

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

Share your comments & questions here