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Question
A real image is formed by a lens. What can be said about the magnification produced by the lens?
A real image is formed by a lens. What can be said about the magnification produced by the lens?
Magnification is positive
Magnification is negative
Magnification is zero
Magnification is infinite
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Solution
The correct option is B Magnification is negative
A real image is always inverted. Also, magnification m=height of imageheight of object. According to the sign conventions, the height of the given image is taken as negative since it is inverted. Therefore, the magnification is also negative.
Magnification is negative
A real image is always inverted. Also, magnification m=height of imageheight of object. According to the sign conventions, the height of the given image is taken as negative since it is inverted. Therefore, the magnification is also negative.
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