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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
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Question # 1
When a nucleus emits an alpha particles, its charge number decreases by
Question # 2
Mass of proton is of order of
Question # 3
The isotope/s of hydrogen is /are:
Question # 4
When certain nucleus emits anα particle, its mass number:
Question # 5
Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called
Question # 6
Radium was discovered by:
Question # 7
Charge on proton is
Question # 8
The emission of radiations take place in elements, having charge number greater than
Question # 9
Gamma rays consist of steam of
Question # 10
The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains
Question # 11
Rate of decay is actually described by.
Question # 12
A mass spectrograph sort out
Question # 13
How much time, theα-particle more massive than an electron
Question # 14
Binding energy per nucleus is
Question # 15
The most abundant isotope of neon is
Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQs Online With Answers
Top Scorers Of Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQ`s Test
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A Amjad Ali 25 - Dec - 2024 00 Min 04 Sec 60/60 -
R Rahimsiddiqui Siddiqui 04 - Jul - 2024 00 Min 06 Sec 60/60 -
M Muhammad 24 - May - 2024 00 Min 09 Sec 60/60 -
F Farzand Shah Farzand Shah 31 - May - 2024 00 Min 41 Sec 60/60 -
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S Sammad Ali 30 - May - 2024 02 Min 33 Sec 50/60 -
M Malaika Waqar 20 - Apr - 2024 03 Min 12 Sec 50/60 -
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A Abdullah Sadakat Ali 27 - May - 2024 05 Min 03 Sec 45/60 -
A Ayan Khan 09 - Aug - 2024 01 Min 58 Sec 40/60 -
M Muhammad Haseeb 25 - Nov - 2024 02 Min 17 Sec 40/60
ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The unit of decay constant is: |
A. Second
B. Metre
C. Hour
D. Year
|
| 2 | Referring to the above figure, the binding energy per nucleon increases upto mass number equal to: |
A. 50
B. 100
C. 150
D. 200
|
| 3 | Neutron was discovered by |
A. Curie
B. Roentgen
C. Chadwick
D. Rutherford
|
| 4 | Which are not the elementary particles? |
A. Photons
B. Leptons
C. Hadrons
D. Quarks
|
| 5 | Radioactivity was discovered by |
A. Rutherford
B. Henri Becqureal
C. Maxwell
D. James Chadwick
|
| 6 | Rate of decay is actually described by. |
A. Half line
B. Decay constant
C. Mean life
D. Total life
|
| 7 | An alpha particle has a charge of |
A. +2e
B. -2e
C. -e
D. +3e
|
| 8 | The half life of radioactive substances depends upon |
A. amount of substance
B. energy of substance
C. state of substance
D. temperature of substance
|
| 9 | Alfa particles are |
A. hydrogen nuclei
B. helium nuclei
C. electrons
D. photons
|
| 10 | The number of isotopes of hydrogen are |
A. 2
B. 1
C. 3
D. 4
|
Test Questions