Question

The most common two-lens telescope, like the simple microscope, uses lenses of what shape?

Answer 1

convex

The most common two-lens telescope, like the simple microscope, uses two convex lenses and is shown in Figure 26.23 b . The object is so far away from the telescope that it is essentially at infinity compared with the focal lengths of the lenses   d o    . The first image is thus produced at.