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	A particle having the mass of electron and charge of a proton is called a	A. photon B. position C. antiproton D. antineutrino
2	The missing mass which is converted to energy in the formation of nucleus, is called	A. packing fraction B. mass defect C. binding energy D. none of these
3	Rate of decay is actually described by.	A. Half line B. Decay constant C. Mean life D. Total life
4	For an atom having atomic number Z and atomic weight A, the number of electron in an atoms	A. A - Z B. A + Z C. Z D. A
5	In radioactive decay, the new element which is formed due to the disintegration of original element is called	A. element B. daughter element C. parent element D. none of these
6	The most abundant isotope of neon is	A. neon-20 B. neon-21 C. neon-22 D. neon-23
7	Structure of the nucleus was explained by	A. J.J Thomson B. Bohr C. Millikan D. Rutherford
8	The number of all the protons and neutrons in a nucleus is known as	A. atomic number B. mass number C. charge number D. none of these
9	The nuclei of an element having the same charge number but different mass numbers are called:	A. Isobars B. Isotopes C. Isomers D. Isobaric
10	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

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

Referring to the above figure, we can say that of all the elements, the most stable element is

Pair production take place when energy ofγ-rays photon is

After alpha decay the atomic number of the atom

The range of particle depends upon the factor

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

Radiation detector are used to

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

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

Fraction of the decaying atoms per unit time is called

The total charge of any nucleus is given as

γ-rays behave like a particle because they explain the

Nucleus of a hydrogen atom may contain:

The chemical properties of an element depends upon the number of

Radioactivity is

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

1 amu is equal to.

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

Neutron was suggested to be in the nucleus by:

Binding energy per nucleus is

The half life of radioactive substances depends upon

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

The most abundant isotope of neon is

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

The number if neutrons in the nucleus of 92U235are

The counter, which also provides the power to the G.M. tube is called:

The emission of radiations take place in elements, having charge number greater than

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

Neon gas have three isotopes whose atomic numbers are

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

During the nuclear changes, the law/s of conservation that hold/s are that of:

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

The number if neutrons in the nucleus of ₉₂U²³⁵are