Question

What is the difference between convex lens and concave lens​

Answer 1

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A convex lens or converging lens focuses the light rays to a specific point whereas a concave lens or diverging lens diverges the light rays. A lens is a transparent material (either curved or flat surface) based on the principles of refraction. Concave lenses and convex lenses are often used together with known as the Concave – Convex lens.

A convex lens or converging lens focuses the light rays to a specific point whereas a concave lens or diverging lens diverges the light rays. A lens is a transparent material (either curved or flat surface) based on the principles of refraction. Concave lenses and convex lenses are often used together with known as the Concave – Convex lens.

Answer 2

Answer:

Convex Lens : In a convex lens (sometimes called a positive lens), the glass (or plastic) surfaces bulge outwards at the centre. A convex lens is also called a converging lens because the parallel light rays moving through it curves inward and touches (converges) at a position just beyond the lens known as the focal point.

Concave Lens : With external surfaces curving inside, a concave lens is just the opposite, making parallel light rays curve outwardly or diverge. Therefore concentric lenses are sometimes referred to as divergent lenses. The disparity between concave and convex lenses will clearly be understood when contemplating the concave lens internally.