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Answer to Question #46985 in Optics for victor

Question #46985
How far from a magnifying glass do you place an object to view it?
closer than than the focal length
distance equal to the focal length
greater than the focal length but less than twice the focal length
at twice the focal length
Expert's answer
Answer
Distance equal to the focal length.
Focal length is the distance from themagnifying lens to the object behind the lens when the object is in focus. To
put it another way, the optimal distance between the object being magnified
(when it is in clear focus) and the magnifying glass is the focal length.
If you are not using a magnifier at itscorrect focal length, the object you are viewing will appear out of focus,
distorted, or upside down when trying to view it through the magnifying glass.

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