Question

Why is the focal length of the objective lens of compound microscope small?

Answer 1

As the magnifying power of compound microscope is inversely proportional to the focal length of the objective lens. Hence , smaller is the focal length, higher is the magnifying power. and smaller is the focal length , higher is the resolving power.

Answer 2

Answer:

The Lower power of lens is (10×) and the high power of lens is (45×) .