Fill in the following blanks with suitable words
(a) If the magnification has a plus sign, than image is ......... and.........
(b) If the magnification has a minus sign, than the image is ......... and .......
Answers
B negative
(a) If the magnification has a plus sign, then the image is virtual and erect.
(b) If the magnification has a minus sign, then the image is real and inverted.
EXPLANATION:
When the magnification is 1 (both plus and minus), the image size and the object size become equal. So, if the magnification has a positive/plus sign, this indicates that the image is upright when compared to the object. When the sign is negative/minus, it shows that the image is inverted and real. This is because a real image always has a minus symbol and the real image is produced below the principal axis.
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