what is Cartesian sign convention
Answers
ANSWER :
Cartesian Sign Convention: In the case of spherical mirror all signs are taken from Pole of the spherical mirror, which is often called origin or origin point.
Hi friend_______,
Cartesian sign conventions are used for measuring the various distances in the ray diagrams of spherical lenses. According to Cartesian convention:
★ The object is always placed on the left side of the lens.
★ All the distances are measured from the optical centre of the lens.
★ The distances measured in the same direction as that of incident light are taken as positive.
★ The distances measured against the direction of incident light are taken as negative.
★ The distances measured upward and perpendicular to the principal axis is taken as positive.
★ The distances measured downward and perpendicular to the principal axis is taken as negative.