sign convention of lenses

Asked by annamirf | 21st Sep, 2010, 06:02: PM

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.
 
Regards,

Answered by  | 21st Sep, 2010, 06:54: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.