Unit: Optics
Year: 1995 Question#: 93
Question: When an object is placed 0.40 meter from a diverging lens with a focal length of -0.10 meter, the image produced will be
(1 ) Virtual and smaller than the object
(2 ) Virtual and larger than the object
(3 ) Real and smaller than the object
(4 ) Real and larger than the object
What is this question really asking?
Explanation by: Adra M
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Answer 1 : Virtual and smaller than the object
Answer 1 is correct. Images formed with diverging lenses are always virtual and smaller than the object.
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Answer 2 : Virtual and larger than the object
Answer 2 is incorrect. Images formed with diverging lenses are never larger than the object.
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Answer 3 : Real and smaller than the object
Answer 3 is incorrect. Images formed with diverging lenses are never real.
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Answer 4 : Real and larger than the object
Answer 4 is incorrect. Images formed with diverging lenses are never real or larger than the object. return to top
What's this question really asking?
If you know that with all diverging lenses, for any object distance, the image will always be virtual and smaller (for near sightedness).
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