1.

Determine the power of the resulting half lens if equi-convex lens of focal length 20 cm is cut into 2 equal half about line parallel to principal axis & line perpendicular to principal axis

Answer»

Determine the power of the resulting half lens if equi-convex lens of focal length 20 cm is cut into 2 equal half about line parallel to principal axis & line perpendicular to principal axis



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