Radii of curvature of a converging lens are in the ratio 1:2. Its focal length is 6 cm and refractive index is 1.5. Then, its radii of curvature are ………… respectively

Options

(a) 9 cm and 18 cm
(b) 6 cm and 12 cm
(c) 3 cm and 6 cm
(d) 4.5 cm and 9 cm

Correct Answer:

4.5 cm and 9 cm

Explanation:

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