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Which type of telescope can be made using a concave mirror, convex mirror, plane mirror and a lens? Draw diagrams of these telescopes.
Optical Focal length Double Concave Lens Plano Convex Lens Set DIY Telescope | eBay
Making a Galilean Telescope
1pcs Optical Glass Objective Lens Concave & Convex Lens DIY Achromatic Telescope | eBay
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Telescope Types
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Telescope Types
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optics - How does a diverging lens in a Galilean telescope form an image at infinity when its object is at its focal plane? - Physics Stack Exchange
19-th century illustration of Galilean telescope, which used a convergent (plano-convex) objective lens and a divergent (plano-concave) eyepiece lens Stock Photo - Alamy
telescope - Reflecting telescopes | Britannica
