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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
Electrons are
Question # 2
The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains
Question # 3
If 'V' is the relativistic speed and 'C' is the speed of light then according to Einstien the factor V/C must always be
Question # 4
The reciprocal of decay constant λ of a radioactive material is:
Question # 5
When certain nucleus emits anα particle, its mass number:
Question # 6
After alpha decay the atomic number of the atom
Question # 7
Three quarks make:
Question # 8
Examples of moderators used in a fission reactor is/are:
Question # 9
The unit of decay constant is
Question # 10
The figure 1.007276μ shows the mass of an:
Question # 11
The most abundant isotope of neon is
Question # 12
How many isotopes of helium are present?
Question # 13
Proton was discovered by Rutherford in
Question # 14
For Protium, the mass defect is:
Question # 15
Radiation detector are used to
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ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Examples of moderators used in a fission reactor is/are: |
A. Water
B. Heavy water
C. Carbon
D. Hydrocarbon
|
| 2 | Structure of the nucleus was explained by |
A. J.J Thomson
B. Bohr
C. Millikan
D. Rutherford
|
| 3 | Referring to the above figure, we can say that of all the elements, the most stable element is |
A. Phosphours
B. Iron
C. uranium
D. Lithium
|
| 4 | Proton was discovered by Rutherford in |
A. 1915
B. 1906
C. 1910
D. 1920
|
| 5 | The nuclei of an element having the same charge number but different mass numbers are called: |
A. Isobars
B. Isotopes
C. Isomers
D. Isobaric
|
| 6 | Heavy water is made of one oxygen atom and two atoms of: |
A. Protium
B. Deuterium
C. Tritium
D. Any of these
|
| 7 | The isotope/s of hydrogen is /are: |
A. Protium
B. Deuterium
C. Tritium
D. Both (A) and (B)
|
| 8 | 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
|
| 9 | There is present in paraffin a large amount of: |
A. Nitrogen
B. Hydrogen
C. Carbon
D. Baryllium
|
| 10 | Mass of neutron is |
A. 1.67 x 10-31kg
B. 1.67 x 10-27kg
C. 9.1 x 10-31kg
D. 1.67 x 10-19kg
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs