The lens formula is a fundamental equation in optics that relates the focal length of a lens to the distances of the object and the image from the lens. It is expressed as 1/f = 1/v - 1/u, where f is the focal length, v is the image distance, and u is the object distance, allowing for the determination of one variable when the other two are known.

Lens Formula

lens formula

fundamental equation in optics

focal length of a lens

distances of the object and the image

Image distance is the distance from the optical center of a lens or mirror to the image formed by the lens or mirror. It is a crucial parameter in the lens formula and affects the size, orientation, and real or virtual nature of the image produced.

image distance

Object distance refers to the distance between an object and a reference point, often used in optics to describe the distance between an object and a lens or mirror. This distance is crucial for determining the properties of the image formed, such as its size, orientation, and clarity.

object distance

determination of one variable

Optics is the branch of physics that studies the behavior and properties of light, including its interactions with matter and the construction of instruments that use or detect it. It encompasses phenomena such as reflection, refraction, diffraction, and interference, and is fundamental in technologies ranging from eyeglasses to advanced scientific instruments.

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