Physics · A-Level · AQA · AQA A-level Physics (7408) · Specification point · 3.9.1.2 · Astrophysics (A-level only) · Telescopes (A-level only)
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3.9.1.2 Reflecting telescopes (A-level only)
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Cassegrain arrangement using a parabolic concave primary mirror and convex secondary mirror. Ray diagram to show path of rays through the telescope up to the eyepiece. Relative merits of reflectors and refractors including a qualitative treatment of spherical and chromatic aberration. |