Respuesta :
Answer:
A concave lens is thinner at the center and thicker at the edges while a convex lens is thicker at the centre and thinner at the edges.
Answer:
Read below.
Explanation:
Convex lenses: have a thicker centre than their edges. Converges light rays to a point.
Concave lenses: have thicker edges than their centre. Diverges the light rays passing through it.