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

Question # 2

Phenomenon of radioactivity is due to disintegration of

Question # 3

Charge on neutron is

Question # 4

Different radioactive material have

Question # 5

When certain nucleus emits anα particle, its mass number:

Question # 6

The total charge of any nucleus is given as

Question # 7

Binding energy per nucleus is

Question # 8

Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:

Question # 9

The unit of decay constant is:

Question # 10

Proton was discovered by Rutherford in

Question # 11

In 1932 Chadwick discovered

Question # 12

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

Question # 13

Which of the following material has longer half life

Question # 14

Radium was discovered by:

Question # 15

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

Question # 16

The counter, which also provides the power to the G.M. tube is called:

Question # 17

An alpha particle has a charge of

Question # 18

The energy is found from Einstein's mass energy relation is called

Question # 19

Rate of decay is actually described by.

Question # 20

Radioactivity is

Question # 21

Neutron was discovered in

Question # 22

1 amu is equal to

Question # 23

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

Question # 24

After alpha decay the atomic number of the atom

Question # 25

Mass of proton is of order of

Question # 26

The chemical properties of all the isotopes of an elements are

Question # 27

There is present in paraffin a large amount of:

Question # 28

Maric Curie and Pieree Curie discovered two new radioactive elements, which are called

Question # 29

When radioactive nucleus emits aβ-particle, the proton-neutron ratio

Question # 30

A pair of quark and antiquark makes a:

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 Maric Curie and Pieree Curie discovered two new radioactive elements, which are called
A. polonium uranium
B. uranium and radium
C. polonium and radium
D. none of these
2 The nucleus left after the emission of some radiation is called:
A. Parent nucleus
B. Daughter necleus
C. Mother necleus
D. Any of these
3 Radioactivity was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
4 The distance travelled byα-particle in a medium before coming to rest, is called
A. range ofγ-particle
B. range of neutrons
C. range of particle
D. none of these
5 β-particles are easily deflected by collisions than heavy
A. α-particles
B. β-particles
C. γ-particles
D. none of these
6 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
7 How much time, theα-particle more massive than an electron
A. 600
B. 7000
C. 5000
D. 15000
8 The emission of radiations take place in elements, having charge number greater than
A. 109
B. 82
C. 69
D. 52
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 The diameter of an atom is of the order
A. 10-125m
B. 10-11m
C. 10-10m
D. 10-9m

Test Questions