In a plano-convex lens the radius of curvature of the convex lens is 1 – McqOptions

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1.	In a plano-convex lens the radius of curvature of the convex lens is 10 cm. If the plane side is polished, then the focal length will be (Refractive index = 1.5) [CBSE PMT 2000; BHU 2004]
A.	10.5 cm
B.	10 cm
C.	5.5 cm
D.	5 cm
Answer» C. 5.5 cm

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