Question:
A parallel beam of light is incident on a combination of two
Last updated: 6/14/2023
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A parallel beam of light is incident on a combination of two optical systems S S with their principal axis coinciding as shown The final beam after all optical processes is also parall principal axis 300 S S If final beam diameter is more than incident one then S S can be both convex lens If final beam diameter is more than incident one then S and S can be convex lens and concave mirror respectively If final beam diameter is equal to that of incident one then S S can be concave lens and convex lens respectively If final beam diameter is less than incident one then S S can be convex lens and concave lens respectively