By Team Aakash Byju's
A convex lens converges light rays that travel parallel to its main axis.
The Convex lens is thicker in the middle and thins out as we get closer to the edges.
A Concave lens is one that is thinner in the middle and thickens as we approach closer to the edges.
A concave lens diverges a straight light beam away from the source, creating a smaller, and upright virtual image.
A concave lens can create virtual, diminished and upright images.
The radius of curvature of a concave refracting surface is greater than zero, i.e. positive.
When an object is kept between the lens and a convex lens, a virtual image is formed.
A refracting surface with a negative radius of curvature is described as a Convex refracting surface.