\(\therefore\) ઘનતા  \(\,\rho  = \frac{A}{{\frac{4}{3}\pi {R^3}}}\,\)

\(\therefore\) \(\frac{{{\rho _{{A_1}}}}}{{{\rho _{{A_2}}}}} = \frac{{{A_1}}}{{\frac{4}{3}\pi R_1^3}} \times \frac{{\frac{4}{3}\pi R_2^3}}{{{A_2}}}\,\,\,\, \)

\(= \frac{{{A_1}}}{{{A_2}}} \times \frac{{R_2^3}}{{R_1^3}}\)

 પણ \({\text{R}} = {{\text{R}}_{\text{0}}}{{\text{A}}^{\frac{{\text{1}}}{{\text{3}}}}}\) પરથી, 

\({{\text{R}}^{\text{3}}} = {R_0}A\,\,\,\)

\(\therefore \,\,\,\frac{{{\rho _{{A_1}}}}}{{{\rho _{{A_2}}}}} = \frac{{{A_1}}}{{{A_2}}} \times \frac{{{A_2}}}{{{A_1}}} = 1:1\)