Two converging glass lenses A and B have focal lengths in the ratio 2:1. The radius of curvature of first surface of lens A is 1/4 th of the second surface where as the radius of curvature of first surface of lens B is twice that of second surface. Then the ratio between the radii of the first surfaces of A and B is

Two converging glass lenses A and B have focal lengths in the ratio 2:

1.	Two converging glass lenses A and B have focal lengths in the ratio 2:1. The radius of curvature of first surface of lens A is 1/4 th of the second surface where as the radius of curvature of first surface of lens B is twice that of second surface. Then the ratio between the radii of the first surfaces of A and B is
Answer» `5:3` `3:5` `1:2` `5:6` ANSWER :D

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