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 are

Question # 2

Nucleon means:

Question # 3

Neon gas have three isotopes whose atomic numbers are

Question # 4

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

Question # 5

The range of particle depends upon the factor

Question # 6

For Protium, the mass defect is:

Question # 7

In wilson cloud chamber, the air becomes saturated with:

Question # 8

Which of the following material has longer half life

Question # 9

Radioactivity is

Question # 10

The nucleus/nuclei of hydrogen is/are:

Question # 11

1 amu is equal to

Question # 12

The half life of radioactive substances depends upon

Question # 13

The nucleus left after the emission of some radiation is called:

Question # 14

Charge on neutron is

Question # 15

Phenomenon of radioactivity is due to disintegration of

Question # 16

The unit of decay constant is

Question # 17

An alpha particle has a charge of

Question # 18

There is present in paraffin a large amount of:

Question # 19

β-particles are easily deflected by collisions than heavy

Question # 20

Radioactivity

Question # 21

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

Question # 22

The reciprocal of decay constant λ of a radioactive material is:

Question # 23

Radium was discovered by:

Question # 24

Structure of the nucleus was explained by

Question # 25

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

Question # 26

The number of protons inside a nucleus is called

Question # 27

The isotope/s of hydrogen is /are:

Question # 28

Three quarks make:

Question # 29

The rate of decay of radioactive substance

Question # 30

The distance travelled byα-particle in a medium before coming to rest, is called

Submit

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


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
Sr.# Question Answer
1 Charge on neutron is
A. 1.6 x 10-19C
B. zero
C. -1.6 x 10-19C
D. 1.2 x 10-19C
2 A pair of quark and antiquark makes a:
A. Meson
B. Baryon
C. Proton
D. Neutron
3 Mass of proton is
A. 1.67 x 10-27kg
B. 1.67 x 10-31kg
C. 1.66 x 10-34kg
D. 1.67 x 10-17kg
4 When radioactive nucleus emits aβ-particle, the proton-neutron ratio
A. decrease
B. increase
C. same
D. none of these
5 Which of the following material has smaller has life
A. uranium
B. polonium
C. radium
D. radian
6 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
7 γ-rays are
A. electrostatic waves
B. electromagnetic waves
C. heavy particles
D. longitudinal waves
8 Radium was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. Rutherford
9 In wilson cloud chamber, the air becomes saturated with:
A. Alcohol vapours
B. Water
C. Helium gas
D. Nitrogen gas
10 If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be
A. Equal to 1
B. Less than 1
C. Greater than 1
D. Infinity

Test Questions

Is this page helpful?