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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
Gamma rays consist of steam of
Question # 2
U-238 present in the natural uranium is about:
Question # 3
Hydrogen atom with only one proton in its nucleus, and one electron in its orbit is called
Question # 4
Referring to the above figure, we can say that of all the elements, the most stable element is
Question # 5
Which of the following material has longer half life
Question # 6
When a charged particle passes through matter, it produces ionization, this effect is used in
Question # 7
Radioactivity was discovered by:
Question # 8
Neutron was disvovered by:
Question # 9
Beta particles are
Question # 10
A mass spectrograph sort out
Question # 11
Radium was discovered by:
Question # 12
Marie curie and Pierre curie discovered:
Question # 13
The amount of energy equivalent to 1 a.m.u is
Question # 14
A mass difference of 0.0012 u is equivalent to and energy of:
Question # 15
Nucleus consists of
Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 21 Nuclear Physics MCQs Online With Answers
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ECAT Physics Chapter 21 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The reciprocal of decay constant λ of a radioactive material is: |
A. Frequency
B. Half life
C. Year
D. Mean life
|
| 2 | The half lie of radium-226 is |
A. 238 years
B. 4.5 x 109days
C. 1620 years
D. 332 years
|
| 3 | The nuclei of an element having the same charge number but different mass numbers are called: |
A. Isobars
B. Isotopes
C. Isomers
D. Isobaric
|
| 4 | A particle having the mass of electron and charge of a proton is called a |
A. photon
B. position
C. antiproton
D. antineutrino
|
| 5 | Curie is a unit of |
A. reluctance
B. resistivity
C. binding energy
D. radioactivity
|
| 6 | Radiation detector are used to |
A. measure intensity of radiation
B. measure energy of radiation
C. difference between different types of radiation
D. all the above
|
| 7 | Nucleus consists of |
A. proton and neutron
B. protons and electron
C. electron and neutron
D. protons only
|
| 8 | When a nucleus emits an alpha particle, it atomic mass decreased by |
A. 2
B. 1
C. 4
D. 3
|
| 9 | There is present in paraffin a large amount of: |
A. Nitrogen
B. Hydrogen
C. Carbon
D. Baryllium
|
| 10 | How many isotopes of helium are present? |
A. 1
B. 2
C. 3
D. 4
|
Test Questions
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alishba rasheed
03 Mar 2018easy mcqs