ICSE Class 8 Answered
State the rules for construction of ray diagrams for convex lens.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Rule 1: A light ray incident parallel to the principal axis converges at the focal point.
Rule 2: A ray passing through the optical centre of a lens remains undeviated irrespective of its inclination on the principal axis.
Rule 3: A ray of light which comes through focus becomes parallel to the principal axis after passing through the lens.
Answered by | 04 Jun, 2014, 03:23: PM
