If the size of the image formed by a converging lens is the same as the object, what can you conclude about the object distance?
A. equal to the image distance.
B. less than the focal length of the lens.
C. equal to the focal length of the lens.
D. less than the image distance.
explain why
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Answer:
As the image is found on screen , therefore image is real i.e. object is placed beyond the focal length of converging lens .
Now , by lens equation
v=
−u+f
−uf
(where v must be +ive)
it is clear from this equation , that v (distance of image from pole) will be smaller when we increase u (distance of object from lens) .
Explanation:
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