A lens is forming the image of an object on its axis. If the lens is placed with its faces reversed, will the position of image change ?
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No, the image will be formed at the same position. This is because when `R_(1) and R_(2)` are interchanged, focal length `f` of lens does not change : `(1)/(f) = (mu -1)((1)/(R_(1)) - (1)/(R_(2)))`
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