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

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

Question # 2

The range of particle depends upon the factor

Question # 3

Marie curie and Pierre curie discovered:

Question # 4

Phenomenon of radioactivity is due to disintegration of

Question # 5

Three quarks make:

Question # 6

For Protium, the mass defect is:

Question # 7

A pair of quark and antiquark makes a:

Question # 8

The chemical behaviour of an atom is determined by

Question # 9

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

Question # 10

Mass of proton is

Question # 11

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

Question # 12

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

Question # 13

Neon gas have three isotopes whose atomic numbers are

Question # 14

The chemical properties of all the isotopes of an elements are

Question # 15

In radioactive decay, the new element which is formed due to the disintegration of original element is called

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 The rate of decay of radioactive substance
A. is constant
B. decrease exponentially with time
C. varies inversely as time
D. decreases linearly with time
2 Which of the following material has smaller has life
A. uranium
B. polonium
C. radium
D. radian
3 The nucleus/nuclei of hydrogen is/are:
A. Proton
B. Deuteron
C. Triton
D. All of these
4 When radioactive nucleus emits aβ-particle, the proton-neutron ratio
A. decrease
B. increase
C. same
D. none of these
5 Electrons are
A. positive charged
B. negatively charged
C. massless
D. neutral
6 The total charge of any nucleus is given as
A. Ze2
B. Z2e
C. Z/e
D. Ze
7 The emission of radiations take place in elements, having charge number greater than
A. 109
B. 82
C. 69
D. 52
8 In wilson cloud chamber, the air becomes saturated with:
A. Alcohol vapours
B. Water
C. Helium gas
D. Nitrogen gas
9 β-particles are easily deflected by collisions than heavy
A. α-particles
B. β-particles
C. γ-particles
D. none of these
10 The number of isotopes of hydrogen are
A. 2
B. 1
C. 3
D. 4

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!