A Cassegrain telescope uses two mirrors as shown in above figure. Such a telescope is built with the mirrors 20 mm apart. If the radius of curvature of the large mirror is
Two-mirror telescopes: Cassegrain, Gregorian and variants
How to Choose A Telescope for Astronomy | Types of Telescopes - Sky & Telescope
a Draw a ray diagram showing the formation of image by a reflecting telescope.b Write two advantages of a reflecting telescope over a refracting telescope.
Reflecting Telescopes - an overview | ScienceDirect Topics
Solved A reflecting telescope has a radius of curvature of | Chegg.com
what telescope should i look for?
Solved 7. You are building a reflecting telescope using a | Chegg.com
Simple Formulas for the Telescope Owner - Sky & Telescope - Sky & Telescope