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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
A pair of quark and antiquark makes a:
Question # 2
Nucleus consists of
Question # 3
The nuclei of an element having the same charge number but different mass numbers are called:
Question # 4
For an atom having atomic number Z and atomic weight A, the charge on the nucleus is
Question # 5
When a nucleus emits an alpha particles, its charge number decreases by
Question # 6
The counter, which also provides the power to the G.M. tube is called:
Question # 7
The most abundant isotope of neon is
Question # 8
Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called
Question # 9
Rate of decay is actually described by.
Question # 10
Maric Curie and Pieree Curie discovered two new radioactive elements, which are called
Question # 11
The number if neutrons in the nucleus of 92U235are
Question # 12
Different radioactive material have
Question # 13
1 amu is equal to.
Question # 14
The number of all the protons and neutrons in a nucleus is known as
Question # 15
The diameter of an atom is of the order
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ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The chemical properties of all the isotopes of an elements are |
A. same
B. different
C. slightly different
D. none of these
|
| 2 | Nucleon means: |
A. Only electrons
B. Only neutrons
C. Only protons
D. Both (A ) and (C)
|
| 3 | The half lie of radium-226 is |
A. 238 years
B. 4.5 x 109days
C. 1620 years
D. 332 years
|
| 4 | The figure 1.007276μ shows the mass of an: |
A. Atom
B. Positron
C. Electron
D. Neutron
|
| 5 | Radioactivity is |
A. self disruptive activity
B. spontaneous activity
C. exhibited by all elements under proper conditions
D. both 'a' and 'b'
|
| 6 | The reciprocal of decay constant λ of a radioactive material is: |
A. Frequency
B. Half life
C. Year
D. Mean life
|
| 7 | For Protium, the mass defect is: |
A. Infinite
B. Zero
C. Very large
D. A few grams
|
| 8 | Referring to the above figure, the binding energy per nucleon increases upto mass number equal to: |
A. 50
B. 100
C. 150
D. 200
|
| 9 | The number of all the protons and neutrons in a nucleus is known as |
A. atomic number
B. mass number
C. charge number
D. none of these
|
| 10 | Which of these is not a radiation detector |
A. Wilson cloud chamber
B. cyclotron acceleration
C. Geiger Miller counter
D. solid state detector
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs