Question

when is magnification positive or negative?explain

Answer 1

If m has a magnitude greater than 1 the image is larger than the object, and an m with a magnitude less than 1 means the image is smaller than the object. If the magnification is positive , the image is upright compared to the object, if m is negative ,the image is inverted compared to the object.




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Answer 2

Answer:

Explanation:

if the image is erect then the magnification is positive. Thus positive

magnification indicates that image formed by a spherical mirror is virtual.

If the image is inverted then the magnification is negative. Thus negative

magnification indicates that image formed by a spherical mirror is real.