Question

1. what is the main difference between a refracting telescope and a reflecting telescope? (1 point)

a refracting telescope uses a concave lens to collect light; a reflecting telescope uses a concave mirror to collect light.
a refracting telescope uses a convex lens to collect light; a reflecting telescope uses a convex mirror to collect light.
a refracting telescope uses a convex lens to collect light; a reflecting telescope uses a concave mirror to collect light.

Explanation:

A refracting telescope works by using a convex lens to refract (bend) and focus light. A reflecting telescope uses a concave mirror to reflect and focus light. Convex lenses in refractors gather light, while concave mirrors in reflectors do the same through reflection.

Answer:

A refracting telescope uses a convex lens to collect light; a reflecting telescope uses a concave mirror to collect light.