Reflecting telescopes (A-level only)
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Why modern telescopes use mirrors

Why modern telescopes use mirrors

Ray diagram of a Cassegrain reflecting telescope with incoming parallel rays, a parabolic primary mirror, a convex secondary mirror, and rays returning through the hole in the primary to the eyepiece Most large astronomical telescopes are reflectors because mirrors can be made very large and do not separate colours. At A level, the arrangement you need is the Cassegrain telescope.

Reflecting telescopes (A-level only) Lesson

  1. A Level
  2. /Physics
  3. /Reflecting telescopes (A-level only)