an object is placed perpendicular to the principal axis of a convex lens of focal length 18 cm the distance of the object from the lens is 27 cm find the position and nature of the image formed
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Mirror formula :
1/u + 1/v = 1/f
1/18 - 1/27 = 1/54
Image distance is 54 cm
The position of the image is thus 54 cm
Since the length is positive, the image is real.
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