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MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics
Try The MCQ's Test For ECAT Physics Chapter 21 Nuclear Physics
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 21 Nuclear Physics
00:00
Question # 1
The nucleous of uranium -235 differs from a nucleous of a uranium -238 in that the later contains
Question # 2
The number of all the protons and neutrons in a nucleus is known as
Question # 3
1 amu is equal to
Question # 4
The rate of decay of radioactive substance
Question # 5
When a charged particle passes through matter, it produces ionization, this effect is used in
Question # 6
Mass of proton is of order of
Question # 7
Heavy water is made of one oxygen atom and two atoms of:
Question # 8
Which of the following material has smaller has life
Question # 9
Neon gas have three isotopes whose atomic numbers are
Question # 10
The number of isotopes of hydrogen are
Question # 11
The total charge of any nucleus is given as
Question # 12
Proton was discovered by Rutherford in
Question # 13
Radioactivity was discovered by
Question # 14
Which of these is not a radiation detector
Question # 15
How many isotopes of helium are present?
Prepare Complete Set Wise ECAT Physics Chapter 21 Nuclear Physics MCQs Online With Answers
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ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The figure 1.007276μ shows the mass of an: |
A. Atom
B. Positron
C. Electron
D. Neutron
|
| 2 | When certain nucleus emits anα particle, its mass number: |
A. Increases by one
B. Decreases by one
C. Remain same
D. Decreases by four
|
| 3 | Neutron was discovered by |
A. Curie
B. Roentgen
C. Chadwick
D. Rutherford
|
| 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 rate of decay of a radioactive substance |
A. decrease exponentially with time
B. decreases linearly with time
C. increases linearly with time
D. increases exponentially with time
|
| 7 | Marie curie and Pierre curie discovered: |
A. Uranium
B. Polonium
C. Radium
D. Both (A) and (C)
|
| 8 | In 1932 Chadwick discovered |
A. proton
B. neutron
C. photon
D. electron
|
| 9 | Neutrons are |
A. positive charge
B. negatively charged
C. massless
D. neutral
|
| 10 | Proton was discovered by Rutherford in |
A. 1915
B. 1906
C. 1910
D. 1920
|
Test Questions