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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-decayv
Question # 2
For atomic nucleus, the binding energy per nucleon with increase in mass number:
Question # 3
Which row is correct for fission and for fusion?
Question # 4
The rate of decay radioactive substance:
Question # 5
The most penetrating radiations out of the following is that of
Question # 6
Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔:
Question # 7
The half-life of a certain element is 3.5 days at STP. If the temperature is doubled and pressure is reduced to half then half-life of the same element will be:
Question # 8
In nuclear fission reaction, when the products are 140X and 94Sr, the number of neutrons emitted is
Question # 9
The number of electrons in a nucleus X of atomic number Z and mass number A is:
Question # 10
In 420 days, the activity of a sample of polonium (Po) fell to one-eight of its initial value. The half-life of polonium is :
Question # 11
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 # 12
Half-life of radon gas is:
Question # 13
The particles equal in mass or greater than mass of protons are called:
Question # 14
Beta particles have less ionizing power than that of alpha particles because:
Question # 15
A radioactive isotope 𝟐𝟑𝟖 𝑼 decays consecutively to 𝟐𝟑𝟒 𝑼 the particles emitted are:
Question # 16
A thorium nucleus is formed when a uranium nucleus emits an 𝑎 −particles. Atomic number of thorium is :
Question # 17
Three quarks make up a:
Question # 18
The half-life of a radioactive element which has only 1//32 of its original mass left after a lapse of 60 days is:
Question # 19
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 # 20
When a radioactive nucleus emits a 𝖰 −paritcles, the mass number of the atom:
Top Scorers Of MDCAT Physics Chapter 16 Nuclear Physics MCQ's Test MCQ`s Test
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A ABBAS ALI 03 - Sep - 2024 03 Min 36 Sec 18/20 -
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H Hoor 09 - Aug - 2024 11 Min 15 Sec 13/20
MCAT Physics Chapter 16 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A radioactive nucleus can emit: |
A. Electron
B. 𝛼 particles
C. Positron
D. Any of these
|
| 2 | Due to emission of 𝖰+ − 𝒓𝒂𝒚𝒔: |
A. Mass of the nucleus increases
B. Mass of the nucleus decreases
C. Charge on the nucleus increases
D. Charge number decreases
|
| 3 | 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
|
| 4 | The half-life of a radioactive element which has only 1//32 of its original mass left after a lapse of 60 days is: |
A. 12days
B. 10days
C. 22days
D. 36days
|
| 5 | The particles equal in mass or greater than mass of protons are called: |
A. Leptons
B. Mesons
C. Baryons
D. Quarks
|
| 6 | When a radioactive nucleus emits a 𝖰 −paritcles, the mass number of the atom: |
A. Increases by one
B. Decreases by one
C. Remains the same
D. Decreases by four
|
| 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 | Which of the following have maximum ionization power? |
A. 𝛼 −rays
B. 𝛽 −rays
C. 𝛾 −rays
D. Same for all
|
| 9 | The binding energy per nucleon is: |
A. Greater for heavy nuclei
B. Least for heavy nuclei
C. Greatest for light nuclei
D. Greatest for medium nuclei
|
| 10 | During a negative β-decayv |
A. An atomic electron is ejected
B. A neutron in the nucleus decays emitting an electron
C. An electron which already present within the nucleus is ejected
D. A part of binding energy of nuclei is converted into electron
|
Test Questions