The ratio $\frac{\mathrm{g}}{{\mathrm{g}}_{\mathrm{h}}}$,  where g and g₁, arc the accelerations due to gravity at the surface of the earth and at a height h above the earth's surface respectively, is :

• A

  ${\left(1+\frac{\mathrm{h}}{\mathrm{R}}\right)}^2$

• B

  ${\left(1+\frac{\mathrm{R}}{\mathrm{h}}\right)}^2$

• C

  ${\left(\frac{\mathrm{R}}{\mathrm{h}}\right)}^2$

• D

  ${\left(\frac{\mathrm{h}}{\mathrm{R}}\right)}^2$