Question

The plane face of a plano convex lens is silvered. If μ be the refractive index and R, the radius of curvature of curved surface, then system will behave like a concave mirror of curvature

• A. $μR$
• B. $\frac {R^2}{μ}$
• C. $\frac {R}{(μ-1)}$
• D. $[\frac {μ+1}{μ-1}]R$

Answer 1

Answer: (C)

$\frac {R}{(μ-1)}$

Answer 2

The correct option is (C): $\frac {R}{(μ-1)}$.