Write the equation for the image formed by a curved surface of radius of curvature $R$ in a medium of refractive index $n_1$.

(N/A) For a spherical refracting surface separating two media with refractive indices $n_1$ and $n_2$,the relationship between the object distance $u$,image distance $v$,and radius of curvature $R$ is given by the formula:
$\frac{n_2}{v} - \frac{n_1}{u} = \frac{n_2 - n_1}{R}$
Here,$n_1$ is the refractive index of the medium where the object is placed,$n_2$ is the refractive index of the second medium,$v$ is the image distance,$u$ is the object distance,and $R$ is the radius of curvature of the spherical surface.