question_answer

If density of the earth is doubled keeping its radius constant, then acceleration due to gravity (\[\text{present value 9}.\text{8m}{{\text{s}}^{-\text{2}}}\]) will be

A) \[~\text{2}.\text{45m}{{\text{s}}^{-\text{2}}}\]

B)  \[\text{4}.\text{9m}{{\text{s}}^{-\text{2}}}\]

C)  \[\text{9}.\text{8m}{{\text{s}}^{-\text{2}}}\]  

D)  \[\text{19}.\text{6m}{{\text{s}}^{-\text{2}}}\]