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

An alpha particle has a charge of

Question # 2

Electrons are

Question # 3

The total charge of any nucleus is given as

Question # 4

The isotope/s of hydrogen is /are:

Question # 5

Proton was discovered by Rutherford in

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

The chemical behaviour of an atom is determined by

Question # 10

Heavy water is made of one oxygen atom and two atoms of:

Question # 11

For an atom having atomic number Z and atomic weight A, the charge on the nucleus is

Question # 12

The chemical properties of an element depends upon the number of

Question # 13

The figure 1.007276μ shows the mass of an:

Question # 14

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

Question # 15

The half life of uranium-238 is

Question # 16

In radio-active decay, the original element which disintegrate to another element is called

Question # 17

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

Question # 18

If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be

Question # 19

Radioactivity was discovered by

Question # 20

In his experiment on nuclear reactions, Rutherford bombardedα particles on:

Question # 21

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

Question # 22

Radiation detector are used to

Question # 23

Rutherford performed an experiment on nuclear reactions in:

Question # 24

The energy is found from Einstein's mass energy relation is called

Question # 25

For Protium, the mass defect is:

Question # 26

γ-rays are

Question # 27

1 amu is equal to

Question # 28

The half lie of radium-226 is

Question # 29

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

Question # 30

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

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 figure 1.007276μ shows the mass of an:
A. Atom
B. Positron
C. Electron
D. Neutron
2 The range ofβ-particle in air is greater than that ofα-particle by
A. 1000 times
B. 100 times
C. 15 times
D. 10 times
3 Neon gas have three isotopes whose atomic numbers are
A. 20, 24 , 23
B. 20, 21 , 22
C. 20, 19 , 21
D. none of these
4 Radioactivity was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
5 The nucleus/nuclei of hydrogen is/are:
A. Proton
B. Deuteron
C. Triton
D. All of these
6 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
7 When certain nucleus emits anα particle, its mass number:
A. Increases by one
B. Decreases by one
C. Remain same
D. Decreases by four
8 γ-rays behave like a particle because they explain the
A. Compton effect
B. Photoelectric effect
C. Pair-production
D. all the above
9 β-particles are easily deflected by collisions than heavy
A. α-particles
B. β-particles
C. γ-particles
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

Test Questions

Is this page helpful?