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The focal length of a plano-convex glass lens is 20 cm (μg=1.5). The plane face of glass lens is silvered. An illuminating object is placed at a distance of 60 cm from the lens on its axis along the convex side. Then the distance (in cm) of the image is |
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Answer» The focal length of a plano-convex glass lens is 20 cm (μg=1.5). The plane face of glass lens is silvered. An illuminating object is placed at a distance of 60 cm from the lens on its axis along the convex side. Then the distance (in cm) of the image is |
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