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Question
The image produced by a lens is virtual, erect and smaller than the object in size. Then the lens must be ______.
Options
convex
concave
cylindrical
any one of the above
MCQ
Fill in the Blanks
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Solution
The image produced by a lens is virtual, erect and smaller than the object in size. Then the lens must be concave.
Explanation:
A concave lens always forms a virtual, erect, and diminished image of an object for all positions. A convex lens forms an enlarged virtual image when the object is within the focal length.
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