R and r are the radii of the earth and moon respectively. `rho_(e)` and `rho_(m)` are the densities of earth and moon respectively. The ratio of the accelerations due to gravity on the surfaces of earth and moon is

R and r are the radii of the earth and moon respectively , p_e and P_m are densities of earth and mon respectively . The ratio of the acceleration due to geavity on the surfaces of moon and earth is

Given that d_(e), d_(m) are densities of the Earth and moon, respectively, D_(e), D_(m) are the diameters of the Earth and the moon, respectively. g_(e) "and" g_(m) are the acceleration due to gravity on the surface of the Earth and moon, respectively. Find the ratio of g_(m) "and" g_(e)

The radii of two planets are respectively R_(1) and R_(2) and their densities are respectively rho_(1) and rho_(2) .The ratio of the accelerations due to gravity at their surface is

The radii of two planets are respectively R_(1) and R_(2) and their densities are respectively rho_(1) and rho_(2) .The ratio of the accelerations due to gravity at their surface is

Two planets have radii r_(1) and 2r_(1) and densities are rho_(1) and 4rho_(1) respectively. The ratio of their acceleration due to gravities is