Quel télescope acheter et pour quel usage ?
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a Draw a ray diagram showing the formation of image by a reflecting telescope.b Write two advantages of a reflecting telescope over a refracting telescope.
Les télescopes
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Reflecting Type Telescope (Cassegrian telescope)
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Draw a labelled ray diagram of a reflecting telescope. Mention its two advantages over the refracting telescope.
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Quels sont les différents types de télescopes ?
Les différents types de télescopes | Astrofiles
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