FSC Physics MCQs Part 1 Physics Part 2 HSSC Pre Medical Pre Engineering text Book Questions first year and second-year Physics mcqs

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During fusion of hydrogen into helium
A. energy is absorbed B. energy is released
C. mass is increased due to energy absorption D. mass is reduced due to energy released
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[explanation]B[/explanation]
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For chain reaction to build up the size of the radioactive target should be
A. greater than the critical size B. less than the critical size
C. equal to the critical size D. all of above can build up a change reaction
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[explanation]A[/explanation]
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Half life of radium is 1590 years. In how many years shall the earth loss all its radium due to radioactive decay?
A. 1590×106 years B. 1590×1012 years
C. 1590×1024 years D. never
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[explanation]D[/explanation]
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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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[explanation]D[/explanation]
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Tick the correct statement
A. moderators slow down the neutrons B. moderators bring the neutrons to rest
C. moderators absorb the neutrons D. moderators reflect the neutrons
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[explanation]A[/explanation]
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The bombardment of nitrogen with ?-particles will produce
A. neutron B. Proton
C. electron D. positron
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[explanation]B[/explanation]
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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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[explanation]A[/explanation]
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A particle having the mass of an electron and the charge of a proton is called a
A. antiproton B. positron
C. gamma rays D. photon
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[explanation]B[/explanation]
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Sum of the masses of constituent nucleons as compared to the mass of the resultant nucleus is
A. smaller B. greater than 82
C. same D. some times smaller some times greater
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[explanation]B[/explanation]
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During fission process a large amount of
A. heat energy is released B. nuclear energy is released
C. chemical energy is released D. light energy is released
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[explanation]B[/explanation]
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