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how far should be an object be placed for a convex lens of focal length 20cm to obtain its image at a distance of 30 cm from the lens what will be the height of the image if the object is 6cm tall |
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Answer» OBJECT distance = 60cm Magnification =0.5 Explanation: Use 1/f=1/v+1/u ,all distances in SI system magnification = -v/u |
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