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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
The nucleus left after the emission of some radiation is called:
Question # 2
When a charged particle passes through matter, it produces ionization, this effect is used in
Question # 3
U-238 present in the natural uranium is about:
Question # 4
1 amu is equal to.
Question # 5
The isotope/s of hydrogen is /are:
Question # 6
The energy acquired by a mass of 1g moving with the speed of light is
Question # 7
Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called
Question # 8
Radioactivity was discovered by:
Question # 9
When thorium nucleus emits aβ-particle, the daughter nucleus is called:
Question # 10
The rate of decay of radioactive substance
Question # 11
Three quarks make:
Question # 12
The nucleus/nuclei of hydrogen is/are:
Question # 13
Which are not the elementary particles?
Question # 14
γ-rays behave like a particle because they explain the
Question # 15
Mass of neutron is
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R Rahimsiddiqui Siddiqui 04 - Jul - 2024 00 Min 06 Sec 60/60 -
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A Ayan Khan 09 - Aug - 2024 01 Min 58 Sec 40/60
ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The missing mass which is converted to energy in the formation of nucleus, is called |
A. packing fraction
B. mass defect
C. binding energy
D. none of these
|
| 2 | According to Rutherford atomic model, the positive charge in an atom |
A. is concentrated at its centre
B. is in the form of positive electron at same distance from its centre
C. is spread uniformly through its volume
D. none of these
|
| 3 | The energy is found from Einstein's mass energy relation is called |
A. binding energy of electron
B. binding energy of proton
C. binding energy of neutron
D. binding energy of nucleus
|
| 4 | The amount of energy equivalent to 1 a.m.u is |
A. 9.315 Mev
B. 93.15 Mev
C. 931.5 Mev
D. 2.22 Mev
|
| 5 | How much time, theα-particle more massive than an electron |
A. 600
B. 7000
C. 5000
D. 15000
|
| 6 | U-238 present in the natural uranium is about: |
A. 59%
B. 0.007%
C. 99%
D. 39%
|
| 7 | The chemical properties of an element depends upon the number of |
A. electron
B. position
C. photons
D. neutrons
|
| 8 | In radioactive decay, the new element which is formed due to the disintegration of original element is called |
A. element
B. daughter element
C. parent element
D. none of these
|
| 9 | In wilson cloud chamber, the air becomes saturated with: |
A. Alcohol vapours
B. Water
C. Helium gas
D. Nitrogen gas
|
| 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