List any three differences between convex lens and concave lens.

Explanation

`{:("Convex lens","Concave lens"),("It is curved outward - thicker at the center and thinner at the edges.","It is curved inwards - thinner at the center and thicker at the edges."),("It converges incident lights rays to a point.","It diverges incident light rays."),("Focal length is positive.","Focal length is negative."),("Forms real and inverted image.","Forms virtual, erect and diminished image."),("Objects appear closer and larger.","Objects appear smaller and farther."),("Used to correct hypermetropia.","Used to correct myopia."):}`