Question

The acceleration due to gravity near the surface of a planet of radius R and density d is proportional to

• A. $\frac { d } { R ^ { 2 } }$
• B. $d R ^ { 2 }$
• C. dR
• D. $\frac { d } { R }$

Answer 1

Answer: (C)

dR

Answer 2

$g = \frac { 4 } { 3 } \pi \rho G R \Rightarrow g \propto d R$