A convex lens produces a double size real image when an object is placed at a distance of 18 cm from it. When should the object be placed in front of convex lens to produce a triple size real image?

A convex lens produces a double size real image when an object is plac

1.	A convex lens produces a double size real image when an object is placed at a distance of 18 cm from it. When should the object be placed in front of convex lens to produce a triple size real image?
A.	9 cm
B.	12 cm
C.	16 cm
D.	6 cm
Answer» D. 6 cm

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A convex lens produces a double size real image when an object is placed at a distance of 18 cm from it. When should the object be placed in front of convex lens to produce a triple size real image?

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