The lens of a telescope

  1. The Question is: An objective lens of a telescope has a 1.90 m focal length. When viewed through this telescope, the moon
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    2. Daisy asked by Daisy
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  2. Which optical instrument uses mirrors, and a lens together and focus light from distant objectsA reflecting telescope B compound
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  3. Give two advantages that a telescope lens or mirror of large diameter has over one of small diameterThe light-gathering power of
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  4. An astronomical refracting telescope is made from two lenses. the objective lens has a focal length of 114 cm, and the eyepiece
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  5. a certain Galilean telescope has a magnification of 2 times. if the focal length of the objective lens is 60 cm, how long is the
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  6. The lens of a telescope has a diameter of 24 inches. Find the exact area of the lens.
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  7. which optical instrument does not use a convex lens to enlarge an imageA a refracting telescope B a compound microscope C a
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  8. The width of a telescope lens is measured to be 3 cm, but the actual size of the lens is 3.1 cm. What is the percent error in
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  9. The lens shown In the diagram causes the light rays entering the lens to expand in different directions.Which of the following
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  10. The lens shown in the diagram causes the light rays entering the lens to expand in different directions..  Which of the
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    2. Jsussu asked by Jsussu
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