Question

Magnification is positive in case of image.

• A. real
• B. erect
• C. inverted

Answer 1

The correct option is B erect

Magnification = $\frac{\text{Height of image}}{\text{Height of object}}$

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.