The effectiveness of an optical lens is attributed to: diffraction reflection refraction interference
Physics · High School · Thu Feb 04 2021
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The effectiveness of an optical lens is primarily attributed to refraction. Refraction is the bending of light as it passes from one transparent medium to another medium with a different refractive index. An optical lens is designed to refract light in a controlled way to converge (in the case of a converging lens) or diverge (in the case of a diverging lens) light rays. This property of lenses enables them to focus light, thereby forming images. The degree to which light bends depends on the angle at which it strikes the surface of the lens and the refractive indices of the materials involved (e.g., air and glass).