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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
Proton was discovered by Rutherford in
Question # 2
Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called
Question # 3
The number of isotopes of hydrogen are
Question # 4
The isotope/s of hydrogen is /are:
Question # 5
The counter, which also provides the power to the G.M. tube is called:
Question # 6
β-particles are easily deflected by collisions than heavy
Question # 7
The amount of energy equivalent to 1 a.m.u is
Question # 8
Neutron was discovered in
Question # 9
An alpha particle has a charge of
Question # 10
Structure of the nucleus was explained by
Question # 11
The half lie of radium-226 is
Question # 12
The nuclei of an element having the same charge number but different mass numbers are called:
Question # 13
The most abundant isotope of neon is
Question # 14
A particle having the mass of electron and charge of a proton is called a
Question # 15
1 amu is equal to.
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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 | Marie curie and Pierre curie discovered: |
A. Uranium
B. Polonium
C. Radium
D. Both (A) and (C)
|
| 2 | An alpha particle has a charge of |
A. +2e
B. -2e
C. -e
D. +3e
|
| 3 | 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
|
| 4 | The most abundant isotope of neon is |
A. neon-20
B. neon-21
C. neon-22
D. neon-23
|
| 5 | Curie is a unit of |
A. reluctance
B. resistivity
C. binding energy
D. radioactivity
|
| 6 | A mass spectrograph sort out |
A. molecules
B. atoms
C. elements
D. isotopes
|
| 7 | The chemical behaviour of an atom is determined by |
A. binding energy
B. atomic number
C. mass number
D. number of isotopes
|
| 8 | 1 amu is equal to. |
A. 1.66 x 10-24kg
B. 1.66 x 10-19kg
C. 1.66 x 10-24kg
D. 1.66 x 10-27kg
|
| 9 | 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
|
| 10 | If a nucleus emits an alpha particle, its mass number decreases by 4 while charge number decreased by |
A. -4
B. 4
C. 2
D. 1
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs