True or False: A simple refracting telescope uses one convex and one concave lens.?

Question

True or False: A simple refracting telescope uses one convex and one concave lens.?

Answer 1

False. A refracting telescope uses two convex lenses to magnify images in the sky.

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Answer 2

True

Answer 3

More or less true.  A Galilean telescope consists of a positive objective lens and a negative eyepiece.  This is the design used for opera glasses.  However, these lenses are not necessarily purely convex and concave and generally consist of more than one lens element.