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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
In radioactive decay, the new element which is formed due to the disintegration of original element is called
Question # 2
The missing mass which is converted to energy in the formation of nucleus, is called
Question # 3
A pair of quark and antiquark makes a:
Question # 4
The nucleus/nuclei of hydrogen is/are:
Question # 5
The amount of energy equivalent to 1 a.m.u is
Question # 6
Mass of proton is
Question # 7
Mass of neutron is
Question # 8
γ-rays behave like a particle because they explain the
Question # 9
According to Rutherford atomic model, the positive charge in an atom
Question # 10
Hydrogen atom with only one proton and one neutron in its nucleus, and one electron, is called
Question # 11
The unit of decay constant is:
Question # 12
A curie represents a very strong source of
Question # 13
The half lie of radium-226 is
Question # 14
A mass difference of 0.0012 u is equivalent to and energy of:
Question # 15
Proton was discovered by Rutherford in
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ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Three quarks make: |
A. An electron
B. A meson
C. A baryon
D. A photon
|
| 2 | Which of the following material has longer half life |
A. radium
B. polonium
C. radium
D. uranium
|
| 3 | A particle having the mass of electron and charge of a proton is called a |
A. photon
B. position
C. antiproton
D. antineutrino
|
| 4 | 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
|
| 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 | 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
|
| 7 | Heavy water is made of one oxygen atom and two atoms of: |
A. Protium
B. Deuterium
C. Tritium
D. Any of these
|
| 8 | Pair production take place when energy ofγ-rays photon is |
A. equal to 1.02 Mev-
B. greater than 1.02 Mev
C. less than 1.02 Mev
D. none of these
|
| 9 | Nucleus of a hydrogen atom may contain: |
A. One neutron only
B. Two protons and one neutron
C. Two protons and two neutrons
D. Aany of above
|
| 10 | The range ofβ-particle in air is greater than that ofα-particle by |
A. 1000 times
B. 100 times
C. 15 times
D. 10 times
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs