We can't form a real image using a convex mirror because the image is formed are behind the mirror (virtual).
What is a convex mirror?
A convex mirror is a curved mirror with reflective surface curved outward towards the light source.
The properties of images formed by a convex mirror; the images are
- Erect,
- Virtual, and
- Diminished
Thus, we can conclude that we can't form a real image using a convex mirror because the image is formed are behind the mirror (virtual).
Learn more about convex mirror here: https://brainly.com/question/7512320
