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· A convex lens is thicker in the middle than at the edges. Parallel rays entering these lenses
are refracted and come to a point called the focus ­ it is said they converge.
· A fat convex lens, with surfaces that are more curved, has a shorter focal length…

Page 2

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· The objective lens has a long focal point so that it produces a large image inside the
· The eyepiece has a short focal length and is used to magnify the real image.
· The distance between the two lenses is equal to the sum of the two…


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