Differentiate: concave lens and convex lens

Question

Arpit Sundas · Accepted Answer

The major differences between concave lens and convex lens are:Concave lensConvex lensIt is thinner at the middle and thicker at the edges.It is thicker at the middle and thinner at the edges.It diverges a parallel beam of light after refraction through it. Hence, is called diverging lens.It converges a parallel beam of light after refraction through it. Hence, is called converging lens.Its focus is virtual.Its focus is real.It forms a virtual image.Depending on the object distance, it forms both real and virtual images.The virtual image formed by a convex lens is always diminished. The virtual image formed by a convex lens is always magnified.

Concave lens	Convex lens
It is thinner at the middle and thicker at the edges.	It is thicker at the middle and thinner at the edges.
It diverges a parallel beam of light after refraction through it. Hence, is called diverging lens.	It converges a parallel beam of light after refraction through it. Hence, is called converging lens.
Its focus is virtual.	Its focus is real.
It forms a virtual image.	Depending on the object distance, it forms both real and virtual images.
The virtual image formed by a convex lens is always diminished.	The virtual image formed by a convex lens is always magnified.