A parallel beam of light is incident on a tube containing

Last updated: 6/10/2023

A parallel beam of light is incident on a tube containing two convex lenses of focal length 5cm and 10 cm as shown the rays are incident on the 5 cm focal length lens first If the diameter of incident beam is 1 6cm then the diameter of final beam is A 4 cm B 2 31 cm C 3 2 cm D 6 cm