Question:
2 different materials -glass and diamond -are used to make convex lenses of the same thickness.we know that diamond can bend light more than glass.which lens will have a greater focal length
Answer:
Focal length of glass made lens will be greater, because the focat length depends on radius of curvature of lens.
So as the diamond bends more, its radius of curvature is less therefore its focal length is also short.
So, the glass lens will have greater focal length.
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