You are given two converging lenses to build a compound microscope.Lens A has focal length 0.50 cm and lens B has focal length of 3.0 cm.Which one of the two lenses would you use for the objective?
A)Lens A,because it has the shorter focal length.
B)Lens B,because it has the longer focal length.
C)It makes no difference which lens I use for the objective.
D)None,because the objective should be a diverging lens.

Question

Quizplus · Accepted Answer

The objective lens of a compound microscope is the one closest to the object being viewed and requires a short focal length to provide a high magnification. Lens A, with the shorter focal length of 0.50 cm, is suitable for this purpose.

You Are Given Two Converging Lenses to Build a Compound