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

The most abundant isotope of neon is

Question # 2

Examples of moderators used in a fission reactor is/are:

Question # 3

Neutrons are

Question # 4

γ-rays behave like a particle because they explain the

Question # 5

Binding energy per nucleus is

Question # 6

The nucleus/nuclei of hydrogen is/are:

Question # 7

Radium was discovered by:

Question # 8

Fraction of the decaying atoms per unit time is called

Question # 9

Which of the following material has longer half life

Question # 10

When a nucleus emits an alpha particles, its charge number decreases by

Question # 11

The number if neutrons in the nucleus of 92U235are

Question # 12

Radioactivity is

Question # 13

Charge on proton is

Question # 14

After alpha decay the atomic number of the atom

Question # 15

A particle having the mass of electron and charge of a proton is called a

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 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
2 Structure of the nucleus was explained by
A. J.J Thomson
B. Bohr
C. Millikan
D. Rutherford
3 The nucleus left after the emission of some radiation is called:
A. Parent nucleus
B. Daughter necleus
C. Mother necleus
D. Any of these
4 Nucleus of a hydrogen atom may contain:
A. One neutron only
B. Two protons and one neutron
C. Two protons and two neutrons
D. Aany of above
5 Mass of proton is of order of
A. 10-31gm
B. 10-27kg
C. 10-24gm
D. 10+27kg
6 For an atom having atomic number Z and atomic weight A, the number of electron in an atoms
A. A - Z
B. A + Z
C. Z
D. A
7 There is present in paraffin a large amount of:
A. Nitrogen
B. Hydrogen
C. Carbon
D. Baryllium
8 The number of protons inside a nucleus is called
A. mass number
B. atomic weight
C. atomic number
D. none of these
9 Heavy water is made of one oxygen atom and two atoms of:
A. Protium
B. Deuterium
C. Tritium
D. Any of these
10 For an atom having atomic number Z and atomic weight A, the charge on the nucleus is
A. A - Z
B. A + Z
C. Z
D. A

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