A convex lens of power 0.04 dioptre produces an image which is double the size of object placed in front of it. Find the position of the object.

A convex lens of power 0.04 dioptre produces an image which is double

1.	A convex lens of power 0.04 dioptre produces an image which is double the size of object placed in front of it. Find the position of the object.
Answer» Solution :DATA supplied, P = 0.04 dioptre,`"" ` m = 2,U = ? `F = (1)/(p) = (1)/(0.04) = (100)/(4) = 2.5 ` m ` m = (f)/(u + f)2 =(25)/(u + 25)2u + 50 = 252u = - 25u = - 12.5 m `

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A convex lens of power 0.04 dioptre produces an image which is double the size of object placed in front of it. Find the position of the object.

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