Physics MCQs

Page No. 41

Which one of the following radiation possesses maximum penetrating power ?


aX-rays

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b B-rays

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c γ-rays

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dAll have the equal penetrating powe

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View Answer γ-rays

Neutron and proton are commonly known as______________?


aNucleon

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bMeson

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cBoson

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d Quartz

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View Answer Nucleon

Antimatter consists of ______________?


aAntiproton

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bAntineutron

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cPositron

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dAll of above

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View Answer All of above

For chain reaction to build up the size of the radioactive target should be______________?


aGreater than the critical size

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bLess than the critical size

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cEqual to the critical size

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d All of above can build up a change reaction

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One AMU is equal to__________________?


a1.66 x 10-27kg

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b166 x 10-15ng

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c166 x 10-20g

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dAll of above

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View Answer All of above

During fusion of hydrogen into helium________________?


aEnergy is absorbed

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bEnergy is released

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c Mass is increased due to energy absorption

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dMass is reduced due to the energy released

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View Answer Energy is released

In the nucleus of uranium, the number of neutrons will be _____________?


a92

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b235

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c143

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dDifferent for different isotopes

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According to which one of following law the density of atom is uniform ?


aJ.J.Thomson model

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bRutherfords model

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cBohrs model

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dAll of the above laws contradict the statement

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View Answer J.J.Thomson model

Which one is not a type of dynamic equilibrium ?


aRotational equilibrium

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bTranslational equilibrium

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cStatic equilibrium

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dBoth A and C are corret answer

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View Answer Static equilibrium

A body will be in complete equilibrium when it is satisfying______________?


a1st condition of equilibrium

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b2nd condition of equilibrium

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cBoth Ist and 2nd condition of equilibrium

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d Impossible

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