ECAT Pre Computer Science Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

Try The MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

  • Total Questions15

  • Time Allowed20

Start Test Download PDF

ECAT Physics Chapter 21 Nuclear Physics

00:00
Question # 1

Curie is a unit of

Question # 2

Structure of the nucleus was explained by

Question # 3

The rate of decay of a radioactive substance

Question # 4

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

Question # 5

Which of the following material has longer half life

Question # 6

Proton was discovered by Rutherford in

Question # 7

The missing mass which is converted to energy in the formation of nucleus, is called

Question # 8

The half life of uranium-238 is

Question # 9

Neutron was disvovered by:

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

Neon gas have three isotopes whose atomic numbers are

Question # 14

The penetration power ofβ-particle is

Question # 15

The number if neutrons in the nucleus of 92U235are

Submit

Prepare Complete Set Wise ECAT Physics Chapter 21 Nuclear Physics MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Physics Chapter 21 Nuclear Physics MCQ`s Test

  • H
    Heer 06 - Jan - 2024 00 Min 51 Sec 60/60
  • M
    maha dhedhi 29 - Jul - 2022 00 Min 52 Sec 60/60
  • B
    Bushra Rehmat 14 - Jul - 2023 02 Min 07 Sec 60/60
  • M
    Muneeb ur Rehman 28 - Jun - 2026 02 Min 20 Sec 56/60
  • M
    Mian House 31 - May - 2024 02 Min 30 Sec 55/60
  • M
    Muhammad Iftikhar 17 - Mar - 2023 02 Min 38 Sec 55/60
  • A
    Abdullah Baloch 10 - Aug - 2024 03 Min 56 Sec 55/60
  • M
    Mohsin iftikhar 09 - Mar - 2024 08 Min 35 Sec 55/60
  • M
    Muhammad Zia 28 - Mar - 2026 11 Min 05 Sec 52/60
  • S
    Sana Hashim 23 - May - 2022 01 Min 50 Sec 50/60
  • A
    Ali Jaan 15 - Apr - 2022 01 Min 47 Sec 45/60
  • M
    Muqadas Zahra 14 - Apr - 2022 04 Min 33 Sec 45/60
  • O
    omer attique 14 - Mar - 2023 02 Min 00 Sec 40/60
  • T
    tehreemnadeem 12 - Jul - 2022 02 Min 13 Sec 40/60
  • H
    Hamza Nawaz 05 - Jun - 2024 02 Min 42 Sec 40/60

ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 A curie represents a very strong source of
A. α-particle
B. β-particle
C. γ-particle
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 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
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 The total charge of any nucleus is given as
A. Ze2
B. Z2e
C. Z/e
D. Ze
6 Which of the following material has smaller has life
A. uranium
B. polonium
C. radium
D. radian
7 The range of particle depends upon the factor
A. charge, mass and energy of particle
B. density of medium
C. ionization potential of the atoms
D. all the above
8 Fraction of the decaying atoms per unit time is called
A. decay atom
B. decay element
C. decay constant
D. decay
9 Mass of proton is of order of
A. 10-31gm
B. 10-27kg
C. 10-24gm
D. 10+27kg
10 Radioactivity was discovered by
A. Rutherford
B. Henri Becqureal
C. Maxwell
D. James Chadwick

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!