ECAT Pre Engineering Physics Chapter 21 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

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Physics ECAT Pre Engineering Chapter 21 Nuclear Physics

00:00
Question # 1

In 1932 Chadwick discovered

Question # 2

The half lie of radium-226 is

Question # 3

The penetration power ofβ-particle is

Question # 4

Different radioactive material have

Question # 5

The chemical behaviour of an atom is determined by

Question # 6

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

Question # 7

The unit of decay constant is:

Question # 8

The range ofβ-particle in air is greater than that ofα-particle by

Question # 9

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

Question # 10

Fraction of the decaying atoms per unit time is called

Question # 11

The isotope/s of hydrogen is /are:

Question # 12

The number of protons inside a nucleus is called

Question # 13

γ-rays behave like a particle because they explain the

Question # 14

Neon gas have three isotopes whose atomic numbers are

Question # 15

Neutron was discovered in

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 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
2 When a charged particle passes through matter, it produces ionization, this effect is used in
A. fission reaction
B. reactor
C. radiation detector
D. fusion reaction
3 Structure of the nucleus was explained by
A. J.J Thomson
B. Bohr
C. Millikan
D. Rutherford
4 U-238 present in the natural uranium is about:
A. 59%
B. 0.007%
C. 99%
D. 39%
5 Marie curie and Pierre curie discovered:
A. Uranium
B. Polonium
C. Radium
D. Both (A) and (C)
6 Rutherford performed an experiment on nuclear reactions in:
A. 1718 A.D
B. 1818 A.D
C. 1918 A.D
D. 2001 A.D.
7 In radioactive decay, the new element which is formed due to the disintegration of original element is called
A. element
B. daughter element
C. parent element
D. none of these
8 The total charge of any nucleus is given as
A. Ze2
B. Z2e
C. Z/e
D. Ze
9 The isotope/s of hydrogen is /are:
A. Protium
B. Deuterium
C. Tritium
D. Both (A) and (B)
10 Which of the following material has smaller has life
A. uranium
B. polonium
C. radium
D. radian

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  • alishba rasheed

    alishba rasheed

    03 Mar 2018

    easy mcqs

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