Answer the following question given this paragraph: 

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.


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

 Choices:

- concave

- angular

- cylindrical

- convex

A:
convex
