[tdx]

What are the uses for converging lenses when the object is situated at these different distances:

(where F= Focal length)

Object is beyond 2F

Object is at 2F

Object beyond F and 2F

Object between F and the lens (one use is magnifying glasses, any others?)

please note: I know all the types of images formed at each distance just not examples of how the 'distances' or lenses are used in practise

Thanks for any help

[Coursework.info]

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[teachercol]

Think about the eye