The distance between an object and its real image produced by a converging lens is 
. The magnification is 2 . What will be the magnification when the object is moved by 
towards the lens?
Text Solution
Verified by ExpertsThe correct answer is:
B
:
Converging lens (or convex lens) forms a real image. Let
Then, 
and 
According to thin lens formula
When the object is moved by 
towards the lens, then new object distance is
Let 
be new image distance.
+ve sign shows that the image formed by the lens is behind the lens. It is real image.
New magnification, 
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