ECAT Pre Computer Science Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics

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

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ECAT Physics Chapter 21 Nuclear Physics

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Question # 1

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

Question # 2

The chemical properties of all the isotopes of an elements are

Question # 3

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

Question # 4

Radiation detector are used to

Question # 5

γ-rays are

Question # 6

Which of the following material has smaller has life

Question # 7

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

Question # 8

Binding energy per nucleus is

Question # 9

The rate of decay of radioactive substance

Question # 10

Mass of neutron is

Question # 11

Nucleus consists of

Question # 12

For an atom having atomic number Z and atomic weight A, the number of electron in an atoms

Question # 13

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

Question # 14

Three quarks make:

Question # 15

γ-rays behave like a particle because they explain the

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called
A. deuterium
B. protium
C. tritium
D. none of these
2 In radio-active decay, the original element which disintegrate to another element is called
A. element
B. daughter element
C. parent element
D. none of these
3 The number of isotopes of hydrogen are
A. 2
B. 1
C. 3
D. 4
4 A curie represents a very strong source of
A. α-particle
B. β-particle
C. γ-particle
D. none of these
5 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
6 When certain nucleus emits anα particle, its mass number:
A. Increases by one
B. Decreases by one
C. Remain same
D. Decreases by four
7 Proton was discovered by Rutherford in
A. 1915
B. 1906
C. 1910
D. 1920
8 The amount of energy equivalent to 1 a.m.u is
A. 9.315 Mev
B. 93.15 Mev
C. 931.5 Mev
D. 2.22 Mev
9 Neutron was suggested to be in the nucleus by:
A. Rutherford in 1920
B. Bohar in 1913
C. Dirac in 1928
D. Anderson in 1932
10 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

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