Question

Can a microscope function as a telescope by inverting it?Can a telescope function as a microscope?

Answer 1

Telescopes have three main function:

1) It collects more light

2) It resolves close object

3) It magnifies

Microscope can do only the magnifying function.

To see faint objects, we need more light which microscope can not do.

Similarly telescope cannot function as microscope because a telescope make far away objects appear larger. If you turn one around the effect is reversed so that objects appear much smaller.That's not of much use. Also a telescope is not going to let you focus on nearby things.