Physics MCQs

Page No. 37

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


aEnergy

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bCharge

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cMass

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d MomentumB.

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View Answer MomentumB.

An alpha particle can produce fluorescence in__________________?


aZnS

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bBarium platinocyanide

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cCalcium tungstate

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dAll of above

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View Answer All of above

Geiger counter is suitable for _________________?


aFast counting

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bExtremely fast counting

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c Slow counting

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dAll situations

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View Answer Slow counting

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


a10 times more

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b100 times more

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c100 times less

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d10 times less

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View Answer 100 times more

Strontium-90 is used as __________________?


aα-particle source

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bβ-particle source

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cγ-rays source

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dNeutron source

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View Answer α-particle source

An alpha particle in a single encounter__________________?


aLoses a small fraction of its energy

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bLosses most of its energy

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cLoses no energy at all

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dLoses all of its energy

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T.V sets and microwave ovens emit ___________________?


aX-rays

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bα-rays

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cβ-rays

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dγ-rays

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View Answer X-rays

Alpha particle ionizes an atom_________________?


aThrough direct collision

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bThrough electrostatic attraction

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cThrough electrostatic repulsion

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dAll of above

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The charge on alpha particles is________________?


aPlus one

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bPlus two

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cMinus two

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dMinus one

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View Answer Plus two

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


aα-rays

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bβ-rays

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cγ-rays

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dB and C have equal antiseptic propertie

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View Answer γ-rays

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