The graph of `1n (R/R_0)` versus `1n A (R = radius` of a nucleus and `A =` its mass number) is

Options

A. a straight line
B. a parabola
C. an ellipse
D. none of these

Answer

A

Explanation

`R = R_(0)A^(1//3)`
`(R )/(R_(0)) = A^(1//3)`
`ln((R )/(R_(0))) = (1)/(3) lnA, y = (1)/(3)x ("straight line")`
In`((R )/(R_(0)))` versus `ln A` will be a straight line