Q. 1

As the mass numbe A. Mass

B. Volume

C. Density

D. Binding energy

Answer :

The average radius of a nucleus is given by



Where is the mass number and m.


The Volume of the nucleus is given by (Putting equation (1))



Since, the number of protons and neutrons are nearly same, say , the Mass is approximately equal to



Density is given by



The above equation of density says that it is independent of A. So as mass number A increases, density do not change.

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