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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
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Question # 1
The range of particle depends upon the factor
Question # 2
The chemical properties of an element depends upon the number of
Question # 3
The range ofβ-particle in air is greater than that ofα-particle by
Question # 4
The half life of radioactive substances depends upon
Question # 5
Which of the following material has longer half life
Question # 6
A pair of quark and antiquark makes a:
Question # 7
A particle having the mass of electron and charge of a proton is called a
Question # 8
The isotope/s of hydrogen is /are:
Question # 9
The rate of decay of a radioactive substance
Question # 10
Neon gas have three isotopes whose atomic numbers are
Question # 11
Maric Curie and Pieree Curie discovered two new radioactive elements, which are called
Question # 12
The diameter of an atom is of the order
Question # 13
Radioactivity
Question # 14
Neutron was suggested to be in the nucleus by:
Question # 15
The missing mass which is converted to energy in the formation of nucleus, is called
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ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | When radioactive nucleus emits aβ-particle, the proton-neutron ratio |
A. decrease
B. increase
C. same
D. none of these
|
| 2 | Which of the following material has longer half life |
A. radium
B. polonium
C. radium
D. uranium
|
| 3 | The half lie of radium-226 is |
A. 238 years
B. 4.5 x 109days
C. 1620 years
D. 332 years
|
| 4 | Nucleon means: |
A. Only electrons
B. Only neutrons
C. Only protons
D. Both (A ) and (C)
|
| 5 | Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called |
A. deuteron
B. deterium
C. protium
D. tritium
|
| 6 | The nucleus/nuclei of hydrogen is/are: |
A. Proton
B. Deuteron
C. Triton
D. All of these
|
| 7 | A pair of quark and antiquark makes a: |
A. Meson
B. Baryon
C. Proton
D. Neutron
|
| 8 | When certain nucleus emits anα particle, its mass number: |
A. Increases by one
B. Decreases by one
C. Remain same
D. Decreases by four
|
| 9 | In 1932 Chadwick discovered |
A. proton
B. neutron
C. photon
D. electron
|
| 10 | The nuclei of an element having the same charge number but different mass numbers are called: |
A. Isobars
B. Isotopes
C. Isomers
D. Isobaric
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs