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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
Rutherford performed an experiment on nuclear reactions in:
Question # 2
The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains
Question # 3
In radioactive decay, the new element which is formed due to the disintegration of original element is called
Question # 4
Alfa , beta and gamma rays are emitted from a radio-active substance
Question # 5
In his experiment on nuclear reactions, Rutherford bombardedα particles on:
Question # 6
The range of particle depends upon the factor
Question # 7
Curie is a unit of
Question # 8
Alfa particles are
Question # 9
The chemical properties of an element depends upon the number of
Question # 10
Phenomenon of radioactivity is due to disintegration of
Question # 11
The most abundant isotope of neon is
Question # 12
An alpha particle has a charge of
Question # 13
The chemical properties of all the isotopes of an elements are
Question # 14
The time required for a radioactive material to decrease in active by one half is called
Question # 15
The chemical behaviour of an atom is determined by
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ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Alfa , beta and gamma rays are emitted from a radio-active substance |
A. spontaneously
B. when it is heated
C. when it is exposed to light
D. When it interacts with the other particle
|
| 2 | 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
|
| 3 | Neutron was disvovered by: |
A. Rutherford in 1920
B. Chadwick in 1922
C. Bohr in 1913
D. Compton in 1927
|
| 4 | γ-rays behave like a particle because they explain the |
A. Compton effect
B. Photoelectric effect
C. Pair-production
D. all the above
|
| 5 | The number of isotopes of hydrogen are |
A. 2
B. 1
C. 3
D. 4
|
| 6 | An alpha particle has a charge of |
A. +2e
B. -2e
C. -e
D. +3e
|
| 7 | Heavy water is made of one oxygen atom and two atoms of: |
A. Protium
B. Deuterium
C. Tritium
D. Any of these
|
| 8 | Radium was discovered by: |
A. Becquerel
B. Marie curie
C. Pierre curie
D. Rutherford
|
| 9 | Maric Curie and Pieree Curie discovered two new radioactive elements, which are called |
A. polonium uranium
B. uranium and radium
C. polonium and radium
D. none of these
|
| 10 | Neutrons are |
A. positive charge
B. negatively charged
C. massless
D. neutral
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs