Thin convex and concave lenses of same material are combined together. A parallel beam of ray passes through the combination.Draw ray diagram for the following set of focal lengths. Note down the position and nature of the images
convex lens concave length
20 cm 10cm
20 cm 20 cm
20 cm 30 cm
Ajit Siddharth , 14 Years ago
Grade
1 Answers
harini desiraju
Last Activity: 14 Years ago
when concave n convex lenses are combined,the system acts as spherical glass slab,i.e curved glass slab. now u can easily proceed,by using the formulae related to refraction at curved surfaces
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