In a Galilean telescope, the eyepiece is a diverging lens, while the objective lens is a converging lens. What is one advantage of this arrangement over a telescope that uses two converging lenses?
A) The observed image is inverted.
B) The observed image subtends a larger angle than the object.
C) The observed image is upright.
D) The observed image is real.
E) The observed image is virtual.

Question

Quizplus · Accepted Answer

The use of a diverging eyepiece lens in a Galilean telescope produces an upright image, unlike a telescope that uses two converging lenses which produces an inverted image. This is an advantage for observing terrestrial objects where an upright image is more useful.

In a Galilean Telescope, the Eyepiece Is a Diverging Lens