A plano convex lens is made of glass of refractive index 1.5. The radi – McqOptions

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1.	A plano convex lens is made of glass of refractive index 1.5. The radius of curvature of its convex surface is R. Its focal length is [RPET 2003]
A.	R/ 2
B.	R
C.	2R
D.	1.5 R
Answer» D. 1.5 R

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