Question

Why magnification is taken negative for real images and positive for virtual images?​

Answer 1

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Magnification is the ratio between the height of the object and the height of the image. In the case of a real image, the height of the object carries a positive sign while the height of the image carries a negative one. Hence the magnification is negative. Therefore, the magnification is positive in this case.

Answer 2

★ Answer

Magnification is the ratio between the height of the object and the height of the image. In the case of a real image, the height of the object carries a positive sign while the height of the image carries a negative one. Hence the magnification is negative. Therefore, the magnification is positive in this case.