write down the characteristics of the convex lens?
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Answer:
Image Characteristics for a Convex Lens
The table shows what happens to the image as an object is brought from infinity toward a convex lens.
Object PositionImage PositionImage CharacteristicsAt infinityAt focal pointImage is a pointMoving toward 2FMoving from F toward 2FIncreasing in size, real, inverted, smaller than objectAt 2FAt 2FReal, inverted, same size as objectMoving from 2F toward FMoving from 2F toward infinityReal, inverted, larger than the objectAt FAt infinityInfinitely bigMoving from F toward lensMoving from -infinity toward lensDecreasing in size, virtual, upright, larger than the object
As long as the image as real the ray diagram is reversible. An object at point A creates an image at point B, while an object at point B creates an image at point A.
Object Position Image Position Image Characteristics
At infinity At focal point Image is a point
Moving toward 2F Moving from F toward 2F Increasing in size, real, inverted, smaller than object
At 2F At 2F Real, inverted, same size as object
Moving from 2F toward F Moving from 2F toward infinity Real, inverted, larger than the object
At F At infinity Infinitely big
Moving from F toward lens Moving from -infinity toward lens Decreasing in size, virtual, upright, larger than the object
As long
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