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

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

Question # 2

1 amu is equal to.

Question # 3

Which are not the elementary particles?

Question # 4

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

Question # 5

1 amu is equal to

Question # 6

The number of protons inside a nucleus is called

Question # 7

In wilson cloud chamber, the air becomes saturated with:

Question # 8

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

Question # 9

The total charge of any nucleus is given as

Question # 10

Nuclei that have the same charge number but different mass number are called

Question # 11

Neutron was discovered by

Question # 12

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

Question # 13

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

Question # 14

The half lie of radium-226 is

Question # 15

Three quarks make:

Question # 16

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

Question # 17

The figure 1.007276μ shows the mass of an:

Question # 18

The half life of uranium-238 is

Question # 19

Beta particles are

Question # 20

Rutherford performed an experiment on nuclear reactions in:

Question # 21

Mass of neutron is

Question # 22

Rate of decay is actually described by.

Question # 23

Pair production take place when energy ofγ-rays photon is

Question # 24

How much time, theα-particle more massive than an electron

Question # 25

A mass spectrograph sort out

Question # 26

Mass of proton is of order of

Question # 27

The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains

Question # 28

The chemical properties of all the isotopes of an elements are

Question # 29

Neutron was disvovered by:

Question # 30

Nucleus consists of

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 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
2 When thorium nucleus emits aβ-particle, the daughter nucleus is called:
A. Protactinium
B. Actinium
C. Uranium
D. Radium
3 Neutron was discovered in
A. 1915
B. 1920
C. 1925
D. 1932
4 Marie curie and Pierre curie discovered:
A. Uranium
B. Polonium
C. Radium
D. Both (A) and (C)
5 Referring to the above figure, we can say that of all the elements, the most stable element is
A. Phosphours
B. Iron
C. uranium
D. Lithium
6 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
7 The half life of radioactive substances depends upon
A. amount of substance
B. energy of substance
C. state of substance
D. temperature of substance
8 Mass of neutron is
A. 1.67 x 10-31kg
B. 1.67 x 10-27kg
C. 9.1 x 10-31kg
D. 1.67 x 10-19kg
9 Phenomenon of radioactivity is due to disintegration of
A. nucleus
B. neutron
C. proton
D. molecule
10 Alfa particles are
A. hydrogen nuclei
B. helium nuclei
C. electrons
D. photons

Test Questions

Is this page helpful?