The radii of two planets are R_1 and R_2 and their densities are rho_1 and rho_2 respectively. Then find ratio of acceleration due to gravity on the planets.

The radii of two planets are R_1 and R_2 and their densities are rho_1

1.	The radii of two planets are R_1 and R_2 and their densities are rho_1 and rho_2 respectively. Then find ratio of acceleration due to gravity on the planets.
Answer» SOLUTION :`IMPLIES` ACCORDING to G `=4/3 piGRrho` `g_1/(g_2) = (4/3piGR_1rho_1)/(4/3piGR_2rho_2)=(R_1rho_1)/(R_2rho_2)`