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Per NCERT, the heights are signed how — for the mirror magnification formula?
ABoth always negative
BSign doesn't matter
CObject height (h) is positive (above the principal axis); image height (h') is POSITIVE for VIRTUAL images and NEGATIVE for REAL images
DBoth always positive
Answer & Solution
Correct answer: C. Object height (h) is positive (above the principal axis); image height (h') is POSITIVE for VIRTUAL images and NEGATIVE for REAL images
Per NCERT §Magnification, h positive; h' positive for virtual (erect), negative for real (inverted) images.
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