The magnitude of the gravitational field at distance `r_(1)` and `r_(2)` from the centre of a uniform sphere of radius `R` and mass `M` are `F_(1)` and `F_(2)` respectively. Then:

Options

A. `frac(F_1)(F_2)=frac(r_1)(r_2)`, if `r_1lt R and r_2 ltR`
B. `frac(F_1)(F_2)=frac(r_2^2)(r_1^2)`, if `r_1lt R and r_2 gt R`
C. `frac(F_1)(F_2)=frac(r_1)(r_2)`, if `r_1gt R and r_2 gt R`
D. `frac(F_1)(F_2)=frac(r_1^2)(r_2^2)`, if `r_1lt R and r_2 ltR`