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)

Question:

Options :

(a) 10.5 cm
(b) 10 cm
(c) 5.5 cm
(d) 5 cm

Answer :

(b) 10 cm

Answer Steps :

step 1

step 2

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