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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
Mass of proton is
Question # 2
The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains
Question # 3
Neutron was disvovered by:
Question # 4
Radiation detector are used to
Question # 5
Radium was discovered by:
Question # 6
Which are not the elementary particles?
Question # 7
The amount of energy equivalent to 1 a.m.u is
Question # 8
Proton was discovered by Rutherford in
Question # 9
1 amu is equal to.
Question # 10
The missing mass which is converted to energy in the formation of nucleus, is called
Question # 11
When a nucleus emits an alpha particle, it atomic mass decreased by
Question # 12
Nucleon means:
Question # 13
The chemical properties of all the isotopes of an elements are
Question # 14
The rate of decay of a radioactive substance
Question # 15
Radioactivity was discovered by:
Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQs Online With Answers
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M Muhammad Haseeb 25 - Nov - 2024 02 Min 17 Sec 40/60 -
A Abdullah Kaleem 25 - Mar - 2024 04 Min 17 Sec 40/60
ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The number if neutrons in the nucleus of 92U235are |
A. Infinite
B. 92
C. 235
D. 143
|
| 2 | When radioactive nucleus emits aβ-particle, the proton-neutron ratio |
A. decrease
B. increase
C. same
D. none of these
|
| 3 | Charge on proton is |
A. 1.59 x 10-9C
B. 1.59 x 10-7C
C. -1.59 x 10-19 C
D. 1.59 x 10-19C
|
| 4 | The total charge of any nucleus is given as |
A. Ze2
B. Z2e
C. Z/e
D. Ze
|
| 5 | A curie represents a very strong source of |
A. α-particle
B. β-particle
C. γ-particle
D. none of these
|
| 6 | γ-rays behave like a particle because they explain the |
A. Compton effect
B. Photoelectric effect
C. Pair-production
D. all the above
|
| 7 | A mass difference of 0.0012 u is equivalent to and energy of: |
A. 0.5 Me V
B. 1.13 MeV
C. 5.13 MeV
D. 1.13 keV
|
| 8 | An alpha particle has a charge of |
A. +2e
B. -2e
C. -e
D. +3e
|
| 9 | γ-rays are |
A. electrostatic waves
B. electromagnetic waves
C. heavy particles
D. longitudinal waves
|
| 10 | 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
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs