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(a) For which position of an object, a real, diminished image is formed by a convex lens?(b) Two convex lenses A and B have focal lengths of 2.5 cm and 12.0 cm, respectively. Which lens has a greater power?(c) Describe with the help of a labelled ray-diagram, the formation of image when an object is placed in the front of a convex lens between focus and optical centre. State any two characteristics of the image formed. |
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Answer» (a) For which position of an object, a real, diminished image is formed by a convex lens? (b) Two convex lenses A and B have focal lengths of 2.5 cm and 12.0 cm, respectively. Which lens has a greater power? (c) Describe with the help of a labelled ray-diagram, the formation of image when an object is placed in the front of a convex lens between focus and optical centre. State any two characteristics of the image formed. |
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