Question

How would you differentiate between concave and convex mirrors by touching them?

Answer 1

Answer:

The image formed by a concave mirror is real, inverted and enlarged (except when the object is between P and F where the image is virtual, erect and enlarged).

Explanation:

mark as barinlist answer

Answer 2

Answer:

In concave lens, the centre of the glass piece is thin while the edges are thick. On the other hand, in convex lens, the centre of the glass piece is thick whereas the edges are thin.