Question

_is use to prepare telescopes​

Answer 1

Answer:

Make a telescope

With a knife, cut out circles that are slightly smaller than the diameter of the lenses in the center of the paper frame circle. Glue the lenses to the center of the frame. The shorter focal length lens will be the eyepiece. Glue that framed lens to the end of the smaller tube.

Answer 2

Answer:

convex lens

Explanation:

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