how far should an object be placed from a convex lens of focal length 20cm to obtain its image at a distance of 30cm from the lens? what will be the height of the image if the object is 6cm tall?
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Answer:
60 please keep me in brain list
Explanation:
Object should be place at a distance of 60 cm on the left side of the convex lens. Negative sign shows that the image is inverted and real.
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