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

A pair of quark and antiquark makes a:

Question # 2

Different radioactive material have

Question # 3

Electrons are

Question # 4

The chemical properties of an element depends upon the number of

Question # 5

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

Question # 6

The rate of decay of a radioactive substance

Question # 7

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

Question # 8

The nucleus/nuclei of hydrogen is/are:

Question # 9

After alpha decay the atomic number of the atom

Question # 10

The half life of radioactive substances depends upon

Question # 11

U-238 present in the natural uranium is about:

Question # 12

The figure 1.007276μ shows the mass of an:

Question # 13

A mass spectrograph sort out

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

Nucleus consists of

Question # 18

The unit of decay constant is

Question # 19

Rutherford performed an experiment on nuclear reactions in:

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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 # 25

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

Question # 26

The nuclei of an element having the same charge number but different mass numbers are called:

Question # 27

Rate of decay is actually described by.

Question # 28

The most abundant isotope of neon is

Question # 29

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

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 When thorium nucleus emits aβ-particle, the daughter nucleus is called:
A. Protactinium
B. Actinium
C. Uranium
D. Radium
2 Nucleon means:
A. Only electrons
B. Only neutrons
C. Only protons
D. Both (A ) and (C)
3 The time required for a radioactive material to decrease in active by one half is called
A. half time
B. half life
C. disintegration time
D. mean life
4 When certain nucleus emits anα particle, its mass number:
A. Increases by one
B. Decreases by one
C. Remain same
D. Decreases by four
5 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
6 The penetration power ofβ-particle is
A. zero
B. less thanα-particle
C. equal toα-particle
D. greater thanα-particle
7 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
A. nuclear fission
B. nuclear fusion
C. man defect
D. radioactivity
8 How much time, theα-particle more massive than an electron
A. 600
B. 7000
C. 5000
D. 15000
9 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
10 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

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!