Physics MCQs

Page No. 37

Pair production cannot take place in a vacuum as ________ is not conserved ?


aEnergy


bCharge


cMass


d MomentumB.


View Answer MomentumB.

An alpha particle can produce fluorescence in__________________?


aZnS


bBarium platinocyanide


cCalcium tungstate


dAll of above


View Answer All of above

Geiger counter is suitable for _________________?


aFast counting


bExtremely fast counting


c Slow counting


dAll situations


View Answer Slow counting

The penetration power of alpha particle as compared to beta particle is_______________?


a10 times more


b100 times more


c100 times less


d10 times less


View Answer 100 times more

Strontium-90 is used as __________________?


aα-particle source


bβ-particle source


cγ-rays source


dNeutron source


View Answer α-particle source

An alpha particle in a single encounter__________________?


aLoses a small fraction of its energy


bLosses most of its energy


cLoses no energy at all


dLoses all of its energy



T.V sets and microwave ovens emit ___________________?


aX-rays


bα-rays


cβ-rays


dγ-rays


View Answer X-rays

Alpha particle ionizes an atom_________________?


aThrough direct collision


bThrough electrostatic attraction


cThrough electrostatic repulsion


dAll of above



The charge on alpha particles is________________?


aPlus one


bPlus two


cMinus two


dMinus one


View Answer Plus two

Sterilization of surgical instruments medical supplies and bandages can be done by exposing them to a beam of_______________?


aα-rays


bβ-rays


cγ-rays


dB and C have equal antiseptic propertie


View Answer γ-rays

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