Question

The graph of $ln\frac{R}{R_0}$ versus ln A (R radius of a nucleus and A - its mass number) is

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

Answer 1

The correct option is A

a straight line

We know that, $R=R_0{A}^{\frac{1}{3}}\Rightarrow \frac{R}{R_0}=A^{\frac{1}{3}}\Rightarrow ln\left(\frac{R}{R_0}\right)=\frac{1}{3}lnA$
This is the equation of a straight line.