Consider two solid spheres of radii R_1=1 m, R_2=2 m and masses M_1 and M_2, respectively. The gravitational field due to sphere (1) and (2) are…

Consider two solid spheres of radii $\displaystyle \mathrm{R}_1=1 \mathrm{~m}, \mathrm{R}_2=2 \mathrm{~m}$ and masses $\displaystyle \mathrm{M}_1$ and $\displaystyle \mathrm{M}_2$, respectively. The gravitational field due to sphere ($\displaystyle 1$) and ($\displaystyle 2$) are shown. The value of $\displaystyle \frac{\mathrm{M}_1}{\mathrm{M}_2}$ is :