Describe the New Cartesian Sign Convention used in optics. Draw a labelled diagram to illustrate this sign convention.
Answers
Explanation:
(i) Distances are gauged from the mirror’s pole.
(ii) Distances measured perpendicular and upward to the principal axis are considered as positive.
(iii) Distance measured perpendicular and downward to the principal axis are considered as negative.
(iv) Distances measured in the incident light's same direction are considered as positive.
(v) Distances measured against the incident light's direction are considered as negative.
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