what is lense? define concave and convex lense
Answers
Answer:
lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses, usually arranged along a common axis.
Answer:
A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses, usually arranged along a common axis.
Concave lens is thinner at the middle and thicker at the edges. Convex lens is thicker in the middle and thinner at the edges. It is a diverging lens. It is a converging lens. It is used as spy holes in doors, in optical instruments(telescope).