Question

Which of the following statements is incorrect?
(A) For a convex mirror, magnification is always negative.
(B) For all virtual images formed by a mirror, magnification is positive.
(C) For a concave lens, magnification is always positive.
(D) For real and inverted images, magnification is always negative.

Hint:

Concave lenses always form virtual, upright, and diminished images, so their magnification is negative.

Answer 1

- A **convex mirror** always forms virtual and upright images, so magnification is negative because the image is formed on the same side as the object. This makes statement (A) correct.
- **Virtual images** formed by mirrors are upright, so magnification is positive. Hence, statement (B) is true.
- A **concave lens** always forms a virtual, upright, and diminished image, so its magnification is negative, not positive. Therefore, statement (C) is incorrect.
- For **real and inverted images**, magnification is always negative, as the image is inverted relative to the object. Hence, statement (D) is true.