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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
1 amu is equal to.
Question # 2
The diameter of an atom is of the order
Question # 3
Neutrons are
Question # 4
The most abundant isotope of neon is
Question # 5
When thorium nucleus emits aβ-particle, the daughter nucleus is called:
Question # 6
Radioactivity was discovered by:
Question # 7
Radioactivity was discovered by
Question # 8
Nucleus consists of
Question # 9
A particle having the mass of electron and charge of a proton is called a
Question # 10
The distance travelled byα-particle in a medium before coming to rest, is called
Question # 11
1 amu is equal to
Question # 12
Neutron was discovered in
Question # 13
The missing mass which is converted to energy in the formation of nucleus, is called
Question # 14
The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains
Question # 15
The chemical properties of an element depends upon the number of
Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQs Online With Answers
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R Rahimsiddiqui Siddiqui 04 - Jul - 2024 00 Min 06 Sec 60/60 -
M Muhammad 24 - May - 2024 00 Min 09 Sec 60/60 -
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M Muhammad Haseeb 25 - Nov - 2024 02 Min 17 Sec 40/60
ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Neutron was discovered by |
A. Curie
B. Roentgen
C. Chadwick
D. Rutherford
|
| 2 | When thorium nucleus emits aβ-particle, the daughter nucleus is called: |
A. Protactinium
B. Actinium
C. Uranium
D. Radium
|
| 3 | γ-rays behave like a particle because they explain the |
A. Compton effect
B. Photoelectric effect
C. Pair-production
D. all the above
|
| 4 | The unit of decay constant is |
A. sex
B. sec2
C. sec-1
D. sec-2
|
| 5 | γ-rays are |
A. electrostatic waves
B. electromagnetic waves
C. heavy particles
D. longitudinal waves
|
| 6 | Fraction of the decaying atoms per unit time is called |
A. decay atom
B. decay element
C. decay constant
D. decay
|
| 7 | Structure of the nucleus was explained by |
A. J.J Thomson
B. Bohr
C. Millikan
D. Rutherford
|
| 8 | Which of these is not a radiation detector |
A. Wilson cloud chamber
B. cyclotron acceleration
C. Geiger Miller counter
D. solid state detector
|
| 9 | The most abundant isotope of neon is |
A. neon-20
B. neon-21
C. neon-22
D. neon-23
|
| 10 | When certain nucleus emits aβ-particles, is mass number: |
A. Remain same
B. Increases by one
C. Decreases by one
D. Decreases by four
|
Test Questions