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

When thorium nucleus emits aβ-particle, the daughter nucleus is called:

Question # 2

Referring to the above figure, we can say that of all the elements, the most stable element is

Question # 3

For Protium, the mass defect is:

Question # 4

The half lie of radium-226 is

Question # 5

Phenomenon of radioactivity is due to disintegration of

Question # 6

Structure of the nucleus was explained by

Question # 7

Which of the following material has smaller has life

Question # 8

Alfa particles are

Question # 9

The half life of radioactive substances depends upon

Question # 10

A pair of quark and antiquark makes a:

Question # 11

Neutrons are

Question # 12

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 # 13

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

Question # 14

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

Question # 15

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

Question # 16

Charge on proton is

Question # 17

There is present in paraffin a large amount of:

Question # 18

Rutherford performed an experiment on nuclear reactions in:

Question # 19

The number of all the protons and neutrons in a nucleus is known as

Question # 20

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

Question # 21

1 amu is equal to.

Question # 22

When certain nucleus emits anα particle, its mass number:

Question # 23

The unit of decay constant is:

Question # 24

The chemical properties of an element depends upon the number of

Question # 25

A curie represents a very strong source of

Question # 26

The unit of decay constant is

Question # 27

After alpha decay the atomic number of the atom

Question # 28

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

Question # 29

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

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 When a nucleus emits an alpha particles, its charge number decreases by
A. 3
B. 2
C. 6
D. 5
2 A particle having the mass of electron and charge of a proton is called a
A. photon
B. position
C. antiproton
D. antineutrino
3 The amount of energy equivalent to 1 a.m.u is
A. 9.315 Mev
B. 93.15 Mev
C. 931.5 Mev
D. 2.22 Mev
4 When a nucleus emits an alpha particle, it atomic mass decreased by
A. 2
B. 1
C. 4
D. 3
5 The counter, which also provides the power to the G.M. tube is called:
A. Thin mica window
B. thin glass window
C. Airy window
D. Wooden window
6 For an atom having atomic number Z and atomic weight A, the charge on the nucleus is
A. A - Z
B. A + Z
C. Z
D. A
7 Binding energy per nucleus is
A. greater for heavy nucleus
B. least for heavy nucleus
C. greatest for light nuclei
D. decreases for medium weight niclei
8 In 1932 Chadwick discovered
A. proton
B. neutron
C. photon
D. electron
9 A mass spectrograph sort out
A. molecules
B. atoms
C. elements
D. isotopes
10 The energy is found from Einstein's mass energy relation is called
A. binding energy of electron
B. binding energy of proton
C. binding energy of neutron
D. binding energy of nucleus

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!