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MCQ's Test For MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test
Try The MCQ's Test For MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test
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Total Questions20
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Time Allowed20
MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test
00:00
Question # 1
During a negative β-decay
Question # 2
In nuclear fission reaction, when the products are 140X and 94Sr, the number of neutrons emitted is
Question # 3
Half-life of radon gas is:
Question # 4
During a negative β-decayv
Question # 5
The example of nuclear fusion is:
Question # 6
𝑎, 𝖰 𝒂𝒏𝒅 radiations come out of radioactive substance:
Question # 7
Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:
Question # 8
Three quarks make up a:
Question # 9
The more readily fissionable isotope of uranium has an atomic mass of:
Question # 10
In an 𝑎 −decay:
Question # 11
The particles equal in mass or greater than mass of protons are called:
Question # 12
For atomic nucleus, the binding energy per nucleon with increase in mass number:
Question # 13
A radioactive isotope 𝟐𝟑𝟖 𝑼 decays consecutively to 𝟐𝟑𝟒 𝑼 the particles emitted are:
Question # 14
Which row is correct for fission and for fusion?
Question # 15
The activity of a radioactive sample is 1.6 curie and half-life is 2.5 days. Its activity after 10 days will be:
Question # 16
The most penetrating radiations out of the following is that of
Question # 17
Nuclear fission experiments show that the neutrons the uranium nuclei into two fragment of about the same size. This process is accompanied by the emission of several:
Question # 18
Beta particles have penetration of about:
Question # 19
If the radioactive substance reduces to 𝟏 𝟏𝟔 PHYSICS of its original mass in 40 days then its half-life is:
Question # 20
Beta particles have less ionizing power than that of alpha particles because:
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MCAT Physics Chapter 16 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A count rate 240 per minute reduces to 30 counts per min in 1 hour. The half-life of source is: |
A. 20min
B. 60min
C. 80min
D. 90min
|
| 2 | Which of the following have maximum ionization power? |
A. 𝛼 −rays
B. 𝛽 −rays
C. 𝛾 −rays
D. Same for all
|
| 3 | The example of nuclear fusion is: |
A. Formation of barium and krypton from uranium
B. Formation of plutonium -235 from uranium -235
C. Formation of helium from hydrogen
D. Formation of water from hydrogen and oxygen
|
| 4 | If the radioactive substance reduces to 𝟏 𝟏𝟔 PHYSICS of its original mass in 40 days then its half-life is: |
A. 10days
B. 20days
C. 40days
D. 4days
|
| 5 | The phenomenon of radioactivity is associated with: |
A. Fission of nucleus
B. Disintegration of neutrons
C. Emission of spectral lines
D. Spontaneous disintegration of the nuclei of atoms
|
| 6 | A radioactive nucleus can emit: |
A. Electron
B. 𝛼 particles
C. Positron
D. Any of these
|
| 7 | In nuclear fission reaction, when the products are 140X and 94Sr, the number of neutrons emitted is |
A. 1
B. 2
C. 5
D. 9
|
| 8 | When a radioactive nucleus remits a beta particle, the proton neutron ratio: |
A. Decreases
B. Increases
C. Remain same
D. None of the above
|
| 9 | The rate of decay radioactive substance: |
A. Is constant
B. Decrease exponentially with time
C. Varies inversely with time
D. Decrease linearly with time
|
| 10 | Because of large mass when 𝑎 −paricle enters the atom or molecule it: |
A. Moves in zigzag path
B. Moves along straight line
C. Moves along circular path
D. None of these
|
Test Questions
Share your comments & questions here
jaweria
24 Sep 2019please bring some other nuclear mcqs