Nuclear Physics Mcqs
This collections of Multiple choice questions and answers focuses on study of Nuclear Physics. These questions are chosen from a collection of most authoritative anhd best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Nuclear Physics comprehensively.
32. In nucleus of uranium the number of neutrons will be
92
235
143
Different for different isotopes
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33. Mass defect per nucleon is
Binding energy of nucleus
Packing fraction
Average energy of nucleus
All of above are one and same thing
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34. Mass of neutron is
1.67 x 10-31 kg
1.67 x 10-27 kg
9.1 x 10-31 kg
1.67 x 10-19 kg
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35. Neutron and proton are commonly known as
Nucleon
Meson
Boson
Quartz
36. Nuclear forces exist between
Proton-proton
Proton-neutron
Neutron-neutron
All of the above
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37. Nuclei having the same mass number but different atomic number are
Isotopes
Isobars
Isotones
Isomers
38. One amu is equal to
1.66 x 10-27kg
166 x 10-15ng
166 x 10-20?g
All of above
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39. Pair production can take place only with
X-rays
?-rays
UV-rays
IR-rays
40. Pair production cannot take place in vacuum as
Mass is not conserved
Energy is not conserved
Momentum is not conserved
Charge is not conserved
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41. Pair production cannot take place in vacuum as ________ is not conserved
Energy
Charge
Mass
Momentum
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42. Pair production takes place in the vicinity of a heavy nucleus so that
Net energy is conserved
Net charge is conserved
Net momentum is conserved
All of the above
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43. Radiations are used for the treatment of skin of a patient is
?-rays
?-rays
?-rays
X-rays
44. Radioactive decay obeys which one of the following law?
N=N?e-?t
N=N?e?t
N=N?e-?t/2
N?=N(1+e?t)
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45. Radioactive materials can be identified by measuring their
Hardness
Density
Mass
Half life
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