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

γ-rays behave like a particle because they explain the

Question # 2

For Protium, the mass defect is:

Question # 3

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

Question # 4

Neutron was suggested to be in the nucleus by:

Question # 5

Neutron was disvovered by:

Question # 6

Beta particles are

Question # 7

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

Question # 8

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

Question # 9

Phenomenon of radioactivity is due to disintegration of

Question # 10

Three quarks make:

Question # 11

Which of the following material has smaller has life

Question # 12

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

Question # 13

Fraction of the decaying atoms per unit time is called

Question # 14

The energy acquired by a mass of 1g moving with the speed of light is

Question # 15

A mass difference of 0.0012 u is equivalent to and energy of:

Question # 16

Neutron was discovered in

Question # 17

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

Question # 18

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

Question # 19

Structure of the nucleus was explained by

Question # 20

Mass of proton is

Question # 21

The number of isotopes of hydrogen are

Question # 22

The number of protons inside a nucleus is called

Question # 23

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

Question # 24

The diameter of an atom is of the order

Question # 25

In wilson cloud chamber, the air becomes saturated with:

Question # 26

Neon gas have three isotopes whose atomic numbers are

Question # 27

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

Question # 28

Radium was discovered by:

Question # 29

A particle having the mass of electron and charge of a proton is called a

Question # 30

In 1932 Chadwick discovered

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 U-238 present in the natural uranium is about:
A. 59%
B. 0.007%
C. 99%
D. 39%
2 When a nucleus emits an alpha particles, its charge number decreases by
A. 3
B. 2
C. 6
D. 5
3 The unit of decay constant is:
A. Second
B. Metre
C. Hour
D. Year
4 Phenomenon of radioactivity is due to disintegration of
A. nucleus
B. neutron
C. proton
D. molecule
5 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
6 How many isotopes of helium are present?
A. 1
B. 2
C. 3
D. 4
7 The isotope/s of hydrogen is /are:
A. Protium
B. Deuterium
C. Tritium
D. Both (A) and (B)
8 Neutron was suggested to be in the nucleus by:
A. Rutherford in 1920
B. Bohar in 1913
C. Dirac in 1928
D. Anderson in 1932
9 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
10 Which of the following material has longer half life
A. radium
B. polonium
C. radium
D. uranium

Test Questions

Is this page helpful?