Physics MCQs

852 MCQs  (Page 41 of 86)

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Electrons_________________?
A. Can exist inside the nucleus
B. Cannot exist inside the nucleus
C. Can exist both inside and outside the nucleus
D. Do not know
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Radioactivity is a ______ (A) Spontaneous activity (B) Chemical property_____________?
A. A & b
B. B & c
C. C & a
D. A b & c
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The energy liberated when one atom of U-235 undergoes fission reaction is________________?
A. 200mev
B. 40mev
C. 30mev
D. 20mev
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Transuranic elements have an atomic number_______________?
A. Greater than 72
B. Greater than 82
C. Greater than 92
D. Greater than 102
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Nuclear forces exist between ___________________?
A. Proton-proton
B. Proton-neutron
C. Neutron-neutron
D. All of the above
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Mass defect per nucleon is ___________________?
A. The binding energy of the nucleus
B. Packing fraction
C. The average energy of the nucleus
D. All of above are one and the same thing
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The bombardment of nitrogen with alpha particles will produce______________?
A. Neutron
B. Proton
C. Electron
D. Positron
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The diameter of an atom is approximately_______________?
A. 10-12m
B. 10-11m
C. 10-10m
D. 10-14m
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Radioactive decay obeys which one of the following law ?
A. N=noe-λt
B. N=noeλt
C. N=noe-λt/2
D. No=n(1+eλt)
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Average energy required to remove one nucleon from the nucleus is called__________________?
A. Binding energy per nucleon
B. Energy of decay
C. Destruction energy
D. All of above
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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