Refraction

Refraction is the bending of light or other waves as they pass from one medium to another, caused by a change in speed. This optical phenomenon is fundamental in areas such as optics, photography, and vision science. It plays a critical role in the functioning of lenses, prisms, and various optical devices.

Refraction meaning with examples

• When light travels from air into water, it slows down and bends, causing a fish underwater to appear closer to the surface than it actually is—this is a clear illustration of refraction in action.
• Optical fibers utilize the principle of refraction to transmit light signals over long distances, making possible high-speed internet connections and efficient telecommunications.
• In a classroom demonstration, a teacher filled a glass with water and placed a pencil inside. When viewed from the side, the pencil seemed to be broken due to refraction, visually showcasing how light bends.
• Refraction of light is essential in creating rainbows, where sunlight passes through raindrops in the atmosphere, bending and separating into various colors.
• The design of eyeglasses relies heavily on the concept of refraction; different lens shapes correct for vision problems by altering the pathway of incoming light, helping the wearer see clearly.