Question

distinguish between a convex and a concave and a plane mirror. without touching them

Answer 1

If you look into a plane mirror, you can find that the size of the image is same as that of the object. If you look into a concave mirror, you can see an enlarged image when placed close and can see an inverted image when kept away. A convex mirror always forms a small and erect image.

Answer 2

hey

CONVEX MIRROR forms VIRTUAL , ERECT AND DIMINISHED image
CONCAVE MIRROR forms REAL and INVERTED image
PLANE MIRROR forms LATERALLY INVERTED image