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The lens of a telescope

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. asked by Daisy
3. 795 views
Which optical instrument uses mirrors, and a lens together and focus light from distant objectsA reflecting telescope B compound
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2. 58 views
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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2. asked by Lisa
3. 1,301 views
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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2. asked by Tanya
3. 1,151 views
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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2. asked by thalia
3. 494 views
The lens of a telescope has a diameter of 24 inches. Find the exact area of the lens.
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2. asked by Tim
3. 403 views
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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2. 64 views
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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2. 30 views
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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2. 89 views
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. asked by Jsussu
3. 76 views