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

Three quarks make:

Question # 2

A pair of quark and antiquark makes a:

Question # 3

Mass of proton is

Question # 4

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

Question # 5

Curie is a unit of

Question # 6

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

Question # 7

Which of the following material has smaller has life

Question # 8

Radiation detector are used to

Question # 9

For Protium, the mass defect is:

Question # 10

Charge on neutron is

Question # 11

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

Question # 12

Rutherford performed an experiment on nuclear reactions in:

Question # 13

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

Question # 14

The number of protons inside a nucleus is called

Question # 15

A mass spectrograph sort out

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 Which of the following material has longer half life
A. radium
B. polonium
C. radium
D. uranium
2 The energy acquired by a mass of 1g moving with the speed of light is
A. 3 x 108J
B. 9 x 1013J
C. 3 x 1013J
D. 9 x 1016J
3 A particle having the mass of electron and charge of a proton is called a
A. photon
B. position
C. antiproton
D. antineutrino
4 Heavy water is made of one oxygen atom and two atoms of:
A. Protium
B. Deuterium
C. Tritium
D. Any of these
5 The half life of uranium-238 is
A. 6.2 x 109years
B. 4.5 x 109days
C. 4.5 x 109years
D. 1.3 x 106years
6 A pair of quark and antiquark makes a:
A. Meson
B. Baryon
C. Proton
D. Neutron
7 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
8 How much time, theα-particle more massive than an electron
A. 600
B. 7000
C. 5000
D. 15000
9 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
10 Radioactivity is
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'

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