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Earned Point(s): 0 of 0, (0) A lens form an image as the result of the A thicker lens has a higher power. The lower the power of a lens, the shorter the focal length of the lens. In figure above, there are 4 light rays P, Q and R passing through a concave lens. Which of the light path is incorrect? In figure above, there are 3 light rays P, Q and R pass through a concave lens. Which light path is incorrect? The figure shows, in an experiment, a card is used to block half of the aperture of a lens. Which of the following is correct about this experiment. Match the position of the object with its application in optical instruments. u = object distance f = focal length
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Earned Point(s): 0 of 0, (0) The focal length of a convex lens is 15cm. What is the characteristic of the image formed if an object is placed 10cm from the mirror? The focal length of a convex lens is 15 cm. What is the characteristic of the image formed if an object is placed 15 cm from the mirror? The focal length of a convex lens is 15 cm. What is the characteristic of the image formed if an object is placed 20 cm from the mirror? The focal length of a convex lens is 15cm. What is the characteristic of the image formed if an object is placed 30cm from the mirror? The focal length of a convex lens is 15cm. What is the characteristic of the image formed if an object is placed 40cm from the mirror? The characteristics of the image produced by a concave lens are
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