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

The half lie of radium-226 is

Question # 2

Binding energy per nucleus is

Question # 3

The most abundant isotope of neon is

Question # 4

The chemical behaviour of an atom is determined by

Question # 5

The chemical properties of an element depends upon the number of

Question # 6

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

Question # 7

Proton was discovered by Rutherford in

Question # 8

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

Question # 9

The number of protons inside a nucleus is called

Question # 10

Pair production take place when energy ofγ-rays photon is

Question # 11

A mass spectrograph sort out

Question # 12

Which of the following material has smaller has life

Question # 13

The range of particle depends upon the factor

Question # 14

The nucleus/nuclei of hydrogen is/are:

Question # 15

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

Question # 16

How many isotopes of helium are present?

Question # 17

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

Question # 18

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

Question # 19

Nucleus consists of

Question # 20

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

Question # 21

Marie curie and Pierre curie discovered:

Question # 22

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

Question # 23

Curie is a unit of

Question # 24

Radiation detector are used to

Question # 25

Neutrons are

Question # 26

Three quarks make:

Question # 27

Phenomenon of radioactivity is due to disintegration of

Question # 28

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

Question # 29

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

Question # 30

The missing mass which is converted to energy in the formation of nucleus, is called

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 The half lie of radium-226 is
A. 238 years
B. 4.5 x 109days
C. 1620 years
D. 332 years
2 The range ofβ-particle in air is greater than that ofα-particle by
A. 1000 times
B. 100 times
C. 15 times
D. 10 times
3 If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by
A. -4
B. 4
C. 2
D. 1
4 γ-rays are
A. electrostatic waves
B. electromagnetic waves
C. heavy particles
D. longitudinal waves
5 β-particles are easily deflected by collisions than heavy
A. α-particles
B. β-particles
C. γ-particles
D. none of these
6 After alpha decay the atomic number of the atom
A. increase by four
B. decreases by two
C. increases by two
D. decrease by four
7 How much time, theα-particle more massive than an electron
A. 600
B. 7000
C. 5000
D. 15000
8 Radioactivity is
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'
9 The rate of decay of radioactive substance
A. is constant
B. decrease exponentially with time
C. varies inversely as time
D. decreases linearly with time
10 The nucleus left after the emission of some radiation is called:
A. Parent nucleus
B. Daughter necleus
C. Mother necleus
D. Any of these

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!