Compared to the direction of the incoming light, in which way does the light leave the eyepiece of a Newtonian telescope?
A) at a variable angle depending on the direction of the source in the sky
B) in the same direction
C) in the reverse direction, back toward the source
D) at right angles

Question

Quizplus · Accepted Answer

In a Newtonian telescope, the light collected by the primary mirror is reflected to a flat secondary mirror, which then directs the light at a right angle to an eyepiece located on the side of the telescope. This design allows for efficient observation without looking directly towards the light source.

Compared to the Direction of the Incoming Light, in Which