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

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ECAT Pre General Science Physics Chapter 21 Nuclear Physics

00:00
Question # 1

Charge on proton is

Question # 2

Fraction of the decaying atoms per unit time is called

Question # 3

There is present in paraffin a large amount of:

Question # 4

Neutrons are

Question # 5

Mass of neutron is

Question # 6

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

Question # 7

The mass of the nucleus is always less than the total man of the protons and neutron that make up the nucleus. The difference of the two masses is called

Question # 8

Which of the following material has longer half life

Question # 9

Which of these is not a radiation detector

Question # 10

The half lie of radium-226 is

Question # 11

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

Question # 12

Which of the following material has smaller has life

Question # 13

Nucleus consists of

Question # 14

Three quarks make:

Question # 15

Radioactivity

Question # 16

Curie is a unit of

Question # 17

How much time, theα-particle more massive than an electron

Question # 18

Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called

Question # 19

The nuclei of an element having the same charge number but different mass numbers are called:

Question # 20

For Protium, the mass defect is:

Question # 21

The half life of uranium-238 is

Question # 22

Structure of the nucleus was explained by

Question # 23

The amount of energy equivalent to 1 a.m.u is

Question # 24

The chemical properties of an element depends upon the number of

Question # 25

β-particles are easily deflected by collisions than heavy

Question # 26

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

Question # 27

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

Question # 28

According to Rutherford atomic model, the positive charge in an atom

Question # 29

The unit of decay constant is

Question # 30

U-238 present in the natural uranium is about:

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 The mass of the nucleus is always less than the total man of the protons and neutron that make up the nucleus. The difference of the two masses is called
A. nuclear fission
B. nuclear fusion
C. man defect
D. radioactivity
4 The number of protons inside a nucleus is called
A. mass number
B. atomic weight
C. atomic number
D. none of these
5 Nucleon means:
A. Only electrons
B. Only neutrons
C. Only protons
D. Both (A ) and (C)
6 In his experiment on nuclear reactions, Rutherford bombardedα particles on:
A. Nitrogen
B. Hydrogen
C. Lead
D. Oxygen
7 Radioactivity was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
8 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
9 Which of the following material has longer half life
A. radium
B. polonium
C. radium
D. uranium
10 Referring to the above figure, the binding energy per nucleon increases upto mass number equal to:
A. 50
B. 100
C. 150
D. 200

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