The radius and density of two artificial satellites are R1 , R2 and ρ1, ρ2 respectively. The ratio of accelerations due to gravity on them will be:
R2ρ2R1ρ1
R1ρ2R2ρ1
R1ρ1R2ρ2
R2ρ1R1ρ2
A
R2ρ2R1ρ1
B
R1ρ2R2ρ1
C
R2ρ1R1ρ2
D
R1ρ1R2ρ2
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Solution
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g=GMR2 and M=4πR3ρ3
Therefore acceleration due to gravity: g∝Rρ
So, a1a2=R1ρ1R2ρ2
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