The radii of two planets are respectively R1 and R2 and their densitie – McqOptions

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1.	The radii of two planets are respectively R1 and R2 and their densities are respectively ρ1 and ρ2. The ratio of the acceleration due to gravity (g1/g2) at their surface is
A.	\(\frac{\rho_1R_2^2}{\rho_2R_1^2}\)
B.	\(\frac{R_1\rho_1}{R_2\rho_2}\)
C.	\(\frac{R_1\rho_2}{R_2\rho_1}\)
D.	\(\frac{R_1R_2}{\rho_1\rho_2}\)
Answer» C. \(\frac{R_1\rho_2}{R_2\rho_1}\)

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