In a compound microscope consisting of two convex lenses of focal lengths `1.5` cm and `10` cm, the object is `2` cm from the objective and the final image is formed at the least distance of distinct vision `(D=25cm)`. Find the distance of separation of the two lenses.

Explanation

Apply the relation `(1)/(f_(0))=(1)/(v_(0))-(1)/(u_(0))` and `(1)/(f_(e))=(1)/(v_(e ))-(1)/(u_(e ))` then find `v_(0)+u_(e )`.