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sign convention of lenses
Asked by annamirf | 21 Sep, 2010, 06:02: PM
answered-by-expert Expert Answer
If a refracting surface is concave towards incident light then its radius of curvature is negative. This is true for a concave refracting surface. If a refracting surface is convex towards incident light (opens away from the incident light) then its radius of curvature is positive. This is true for a convex refracting surface.
 
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Answered by | 21 Sep, 2010, 06:54: PM

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