Question

give some characteristic of concave and convex lens......​

Answer 1

Answer:

A concave lens is thinner in the middle and thicker at the edges. A convex lens is thicker in the middle and thinner at the edges.

Explanation:

hope its help you

Answer 2

Answer:

Concave:-

Concave mirrors can form inverted and real images and also virtual and erect images. Size can be smaller, larger or of the same size depending on the position of the object. Smaller than the size of the object, always. ... Always within the focus, irrespective of the position of the object.

Convex:-

Convex mirrors reflect light outwards (diverging light rays) and therefore they are not used to focus light. The image is virtual, erect and smaller in size than the object, but gets larger (maximum upto the size of the object) as the object comes towards the mirror. Such mirrors are also called diverging mirrors.