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The nucleus is approximately spherical i...

The nucleus is approximately spherical in shape. Then the surface area of nucleus haviing mass number A varies as.

A

`A^(2/3)`

B

`A^(4/3)`

C

`A^(1/3)`

D

`A^(5/3)`

Text Solution

Verified by Experts

The correct Answer is:
A
Volume of nucleus is proportional to mass number
`4/3 pi R^(3) infty A, R = R_(0) A^(1/3)`
So, `4 pi R^(2) = R_(0)A^(2/3) Rightarrow 4 pi R^(2) infty A^(2/3)` . Surface area is proportional to` ("mass number")^(2/3)`
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