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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
When thorium nucleus emits aβ-particle, the daughter nucleus is called:
Question # 2
Nucleus consists of
Question # 3
The emission of radiations take place in elements, having charge number greater than
Question # 4
A mass difference of 0.0012 u is equivalent to and energy of:
Question # 5
Maric Curie and Pieree Curie discovered two new radioactive elements, which are called
Question # 6
Mass of neutron is
Question # 7
Which are not the elementary particles?
Question # 8
Which of these is not a radiation detector
Question # 9
Nuclei that have the same charge number but different mass number are called
Question # 10
Neutron was disvovered by:
Question # 11
Radium was discovered by:
Question # 12
Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called
Question # 13
The range ofβ-particle in air is greater than that ofα-particle by
Question # 14
Electrons are
Question # 15
The distance travelled byα-particle in a medium before coming to rest, is called
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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A Abdullah Sadakat Ali 27 - May - 2024 05 Min 03 Sec 45/60 -
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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 | Binding energy per nucleus is |
A. greater for heavy nucleus
B. least for heavy nucleus
C. greatest for light nuclei
D. decreases for medium weight niclei
|
| 2 | Neutrons are |
A. positive charge
B. negatively charged
C. massless
D. neutral
|
| 3 | The chemical properties of an element depends upon the number of |
A. electron
B. position
C. photons
D. neutrons
|
| 4 | Fraction of the decaying atoms per unit time is called |
A. decay atom
B. decay element
C. decay constant
D. decay
|
| 5 | The chemical properties of all the isotopes of an elements are |
A. same
B. different
C. slightly different
D. none of these
|
| 6 | For an atom having atomic number Z and atomic weight A, the number of electron in an atoms |
A. A - Z
B. A + Z
C. Z
D. A
|
| 7 | Examples of moderators used in a fission reactor is/are: |
A. Water
B. Heavy water
C. Carbon
D. Hydrocarbon
|
| 8 | Radioactivity |
A. is exhibited more by semiconductors in general
B. in exhibited more by the element when they are coupled
C. with other radioactive elements by a covalent bond
D. is an atomic property of radioactive elements
|
| 9 | Curie is a unit of |
A. reluctance
B. resistivity
C. binding energy
D. radioactivity
|
| 10 | The nucleus/nuclei of hydrogen is/are: |
A. Proton
B. Deuteron
C. Triton
D. All of these
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs