Question

in this type of refracting telescope, both concave and convex mirrors are used​

Answer 1

Explanation:

Galileo made telescopes with a convex objective and a concave eyepiece. These produce an upright image and are used in spyglasses. (b) Most simple refracting telescopes have two convex lenses. The objective forms a real, inverted image at (or just within) the focal plane of the eyepiece.

Answer 2

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