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The correct expression for refraction at...

The correct expression for refraction at single convex spherical surface separating two media of refractive indices `mu_(1) and mu_(2) ( mu_(2) gt mu_(1))` and radius of curvature R is ( u and v are object, image distane respectively )

A

`frac(n_1)(u)` - frac(n_2)(v) = frac((n_1 - n_2))(R)`

B

`frac(n_1)(v) - frac(n_2)(u) = frac((n_1 - n_2))(R)`

C

`frac(n_2)(u) - frac(n_1)(v) = frac((n_2 - n_1))(R)`

D

`frac(n_2)(v) - frac(n_1)(u) = frac((n_2 - n_1))(R)`

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