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MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics
Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 21 Nuclear Physics
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Total Questions15
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Time Allowed20
Physics ECAT Pre Engineering Chapter 21 Nuclear Physics
00:00
Question # 1
In his experiment on nuclear reactions, Rutherford bombardedα particles on:
Question # 2
Mass of proton is of order of
Question # 3
Rate of decay is actually described by.
Question # 4
How many isotopes of helium are present?
Question # 5
The rate of decay of radioactive substance
Question # 6
The half lie of radium-226 is
Question # 7
Alfa , beta and gamma rays are emitted from a radio-active substance
Question # 8
The amount of energy equivalent to 1 a.m.u is
Question # 9
Curie is a unit of
Question # 10
Which are not the elementary particles?
Question # 11
γ-rays are
Question # 12
Nuclei that have the same charge number but different mass number are called
Question # 13
In wilson cloud chamber, the air becomes saturated with:
Question # 14
The missing mass which is converted to energy in the formation of nucleus, is called
Question # 15
The chemical properties of an element depends upon the number of
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ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | The unit of decay constant is |
A. sex
B. sec2
C. sec-1
D. sec-2
|
| 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 | The half life of radioactive substances depends upon |
A. amount of substance
B. energy of substance
C. state of substance
D. temperature of substance
|
| 5 | Radioactivity was discovered by |
A. Rutherford
B. Henri Becqureal
C. Maxwell
D. James Chadwick
|
| 6 | Referring to the above figure, the binding energy per nucleon increases upto mass number equal to: |
A. 50
B. 100
C. 150
D. 200
|
| 7 | 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
|
| 8 | Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called |
A. deuteron
B. deterium
C. protium
D. tritium
|
| 9 | The chemical properties of an element depends upon the number of |
A. electron
B. position
C. photons
D. neutrons
|
| 10 | Rutherford performed an experiment on nuclear reactions in: |
A. 1718 A.D
B. 1818 A.D
C. 1918 A.D
D. 2001 A.D.
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs