Question

The radii of curvature of a convexo convex lens of glass (n=1.50) are in the ratio 1:2. This lens renders the rays coming from an illuminated filament at a distance of 6.0 cm parallel . Calculate the radii of curvature of its surfaces.

Answer 1

Answer:

Explanation: since the lens renders parallel rays the object should be at f. So f=6cm

Now use the lens makers formula