What are the sign conventions to lens for using optical formula.
Answer (1)
20th Jan, 2022
The sign conventions used for spherical lenses if the object is always placed to the left of the lens so that the light from the object falls to the lens from the left hand side
Oldest census parallel to the principal axis usually called x-axis are measured from optical lens is taken as the origin point
All distance is measured to the right of the origin along x axis are taken as positive but distance is measured to the left of the origin are taken as negative
Along the direction perpendicular to the principal axis usually called y- axis heights measured above the principal axis are taken as positive but height measured below the principal axis are taken as negative.
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