lightNewtonRing app for iPhone and iPad

Newtons rings is a phenomenon in which an interference pattern is created by the reflection of light between two surfaces, typically a spherical surface and an adjacent touching flat surface.This app is designed to elaborate visualize modeling of Newtons RingThe interference of two reflections causes Newton rings.nWe can observe the Newton Rings when light is reflected from a plano-convex lens of a long focal length placed in contact with a plane glass plate. A thin air film is formed between the plate and the lens. The thickness of the air film varies. If the lens plate system is illuminated with monochromatic light falling on it, concentric bright and dark interference rings are observed in reflected light. These circular fringes were discovered by Newton and are called Newton’s rings..If the wavelength of the incident light is λ, the radius of curvature of the lens is R, and the distance from the lens center is r, the light intensity I is expressed as follows.n Newton ring Formula Intesity:nnI=4I0Sin2(πr2λR)