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Which of the following optical instruments are used in a Cassegrain telescope?
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A Cassegrain telescope uses two mirrors as shown in the above figure. Such a telescope is built with the mirrors $20mm$ apart. If the radius of curvature of the large mirror is
In a reflecting telescope (Cassegrain), is there a difference between using a concave or convex secondary mirror? - Astronomy Stack Exchange
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Cassegrain reflector - Wikipedia
Draw a schematic diagram of a reflecting telescope (Cassegrain). Write its two advantages over a refracting telescope.
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In a reflecting telescope (Cassegrain), is there a difference between using a concave or convex secondary mirror? - Astronomy Stack Exchange
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