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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  • Time Allowed20

ECAT Physics Chapter 21 Nuclear Physics

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Question # 1

Rutherford performed an experiment on nuclear reactions in:

Question # 2

Charge on neutron is

Question # 3

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

Question # 4

Neon gas have three isotopes whose atomic numbers are

Question # 5

γ-rays are

Question # 6

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

Question # 7

Phenomenon of radioactivity is due to disintegration of

Question # 8

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

Question # 9

The unit of decay constant is

Question # 10

Charge on proton is

Question # 11

A mass spectrograph sort out

Question # 12

Mass of neutron is

Question # 13

Neutron was discovered in

Question # 14

For Protium, the mass defect is:

Question # 15

An alpha particle has a charge of

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ECAT Physics Chapter 21 Important MCQ's

Sr.# Question Answer
1 The nucleus left after the emission of some radiation is called:
A. Parent nucleus
B. Daughter necleus
C. Mother necleus
D. Any of these
2 Rutherford performed an experiment on nuclear reactions in:
A. 1718 A.D
B. 1818 A.D
C. 1918 A.D
D. 2001 A.D.
3 Radioactivity was discovered by:
A. Becquerel
B. Marie curie
C. Pierre curie
D. All of them
4 In his experiment on nuclear reactions, Rutherford bombardedα particles on:
A. Nitrogen
B. Hydrogen
C. Lead
D. Oxygen
5 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
6 Phenomenon of radioactivity is due to disintegration of
A. nucleus
B. neutron
C. proton
D. molecule
7 The rate of decay of a radioactive substance
A. decrease exponentially with time
B. decreases linearly with time
C. increases linearly with time
D. increases exponentially with time
8 Radiation detector are used to
A. measure intensity of radiation
B. measure energy of radiation
C. difference between different types of radiation
D. all the above
9 Gamma rays consist of steam of
A. electron
B. proton
C. photons
D. all of these
10 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

Test Questions

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