Physics MCQs

Page No. 40

Average energy required to remove one nucleon from the nucleus is called__________________?


aBinding energy per nucleon


bEnergy of decay


c Destruction energy


d All of above



Radioactive decay obeys which one of the following law ?


a N=Noe-λt


bN=Noeλt


cN=Noe-λt/2


dNo=N(1+eλt)


View Answer N=Noe-λt

The diameter of an atom is approximately_______________?


a10-12m


b10-11m


c10-10m


d10-14m


View Answer 10-10m

The bombardment of nitrogen with alpha particles will produce______________?


aNeutron


bProton


cElectron


dPositron


View Answer Proton

Mass defect per nucleon is ___________________?


aThe binding energy of the nucleus


bPacking fraction


cThe average energy of the nucleus


dAll of above are one and the same thing


View Answer Packing fraction

Nuclear forces exist between ___________________?


aProton-proton


bProton-neutron


cNeutron-neutron


dAll of the above


View Answer All of the above

Transuranic elements have an atomic number_______________?


aGreater than 72


bGreater than 82


c Greater than 92


dGreater than 102


View Answer Greater than 92

The energy liberated when one atom of U-235 undergoes fission reaction is________________?


a200MeV


b40MeV


c 30MeV


d20MeV


View Answer 200MeV

Radioactivity is a ______ (A) Spontaneous activity (B) Chemical property_____________?


aA & B


bB & C


cC & A


dA B & C


View Answer C & A

Electrons_________________?


aCan exist inside the nucleus


bCannot exist inside the nucleus


cCan exist both inside and outside the nucleus


dDo not know


View Answer Do not know

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