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Question

Magnification is positive in case of image.

A
real
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B
erect
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C
inverted
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Solution

The correct option is B erect
Magnification = Height of imageHeight of object

When the object is placed above the principal axis, the height of the object is taken as positive. Therefore, for magnification to be positive, the image should be formed above the principal axis. Hence, magnification is positive for an erect image.

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August 2016
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