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

In his experiment on nuclear reactions, Rutherford bombardedα particles on:

Question # 2

The figure 1.007276μ shows the mass of an:

Question # 3

Gamma rays consist of steam of

Question # 4

If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by

Question # 5

Neutron was discovered in

Question # 6

When certain nucleus emits anα particle, its mass number:

Question # 7

The rate of decay of a radioactive substance

Question # 8

Heavy water is made of one oxygen atom and two atoms of:

Question # 9

The number if neutrons in the nucleus of 92U235are

Question # 10

Three quarks make:

Question # 11

Marie curie and Pierre curie discovered:

Question # 12

Charge on neutron is

Question # 13

Different radioactive material have

Question # 14

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

Question # 15

The chemical properties of all the isotopes of an elements are

Question # 16

There is present in paraffin a large amount of:

Question # 17

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

Question # 18

The half life of uranium-238 is

Question # 19

Curie is a unit of

Question # 20

The rate of decay of radioactive substance

Question # 21

The number of isotopes of hydrogen are

Question # 22

1 amu is equal to

Question # 23

How many isotopes of helium are present?

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

U-238 present in the natural uranium is about:

Question # 28

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

Question # 29

Mass of proton is of order of

Question # 30

Radioactivity was discovered by:

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 A pair of quark and antiquark makes a:
A. Meson
B. Baryon
C. Proton
D. Neutron
2 1 amu is equal to
A. 1.66 x 10-24kg
B. 1.66 x 10-19kg
C. 1.66 x 10-34kg
D. 1.66 x 10-27kg
3 The most abundant isotope of neon is
A. neon-20
B. neon-21
C. neon-22
D. neon-23
4 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
5 For an atom having atomic number 'Z' and atomic weight 'A', the number of neutrons in the nucleous is
A. A - Z
B. A
C. Z
D. A + Z
6 Alfa particles are
A. hydrogen nuclei
B. helium nuclei
C. electrons
D. photons
7 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
8 Proton was discovered by Rutherford in
A. 1915
B. 1906
C. 1910
D. 1920
9 The half life of radioactive substances depends upon
A. amount of substance
B. energy of substance
C. state of substance
D. temperature of substance
10 Phenomenon of radioactivity is due to disintegration of
A. nucleus
B. neutron
C. proton
D. molecule

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!