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The radii of two planets are respectivel...

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

Text Solution

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As `g=(GM)/(R^(2))=G/(R^(2))xx4/3piR^(3)rho=4/3piGRrho`,so `gpropRrho`
`:. (g_(1))/(g_(2))=(R_(1)rho_(1))/(r_(2)rho_(2))`
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