Two thin convex lens L1 and L2 of focal lengths f1 and f2 respectively,are placed coaxially in contact An - Physics - Ray Optics And Optical Instruments

Question

Two thin convex lens L1 and L2 of focal
lengths f1 and f2 respectively,are placed
coaxially in contact An object is placed at a point beyond the
focus of L1 Draw a ray diagram to show the image
formation by the combination and hence derive the expressions for
the focal lengths of combined system

Vaibhav T. · Accepted Answer

Dear Student,

Two thin convex lens L1 and L2 of focal lengths f1 and f2 respectively,are placed coaxially in contact. An object is placed at a point beyond the focus of L1. Draw a ray diagram to show the image formation by the combination and hence derive the expressions for the focal lengths of combined system.