A candle is placed in front of an optical instrument, and an image is obtained as erect, virtual, and reversed from left to right. Identify the device that would produce the types of images described above.
A
Concave mirror
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B
Convex mirror
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C
Concave lens
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D
Convex lens
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E
Flat mirror
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Solution
The correct option is E Flat mirror The image formed by a concave mirror can be real or virtual and inverted as well. The image formed by the convex mirror will be virtual, erect but smaller in size than the object. The image formed by a convex lens can be inverted. Plane mirrors are the only mirrors for which the image will always be virtual, erect, and of the same size as the object. The image produced is also laterally inverted.