A Newtonian telescope uses
A) only one mirror with its front surface shaped into a parabola.
B) one curved mirror and one flat mirror at a 45° angle to the first mirror axis.
C) two flat mirrors inclined to each other at a right angle.
D) two curved mirrors, one convex, the second concave in shape.

Question

Quizplus · Accepted Answer

A Newtonian telescope uses a primary concave parabolic mirror to gather light and a secondary flat mirror at a 45° angle to direct the light to the eyepiece.

A Newtonian Telescope Uses