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With the help of a ray diagram explain the working of a reflecting telescope.

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Question

With the help of a ray diagram explain the working of a reflecting telescope.

Answer in Brief
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Solution

Parallel light beams from an infinite distance are incident on two concave objective mirrors at first. They are incident on a secondary convex mirror after reflection. At F, a virtual image is produced. The rays meet at a point after reflection by the convex mirrors to generate a true image, which is perceived through the eyepiece.

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2021-2022 (March) Term 2 - Delhi Set 1

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