Optics

Optics is the branch of physics which is concerned with light and its behavioural pattern and properties. Optics is a branch of physics that deals with the determination of behaviour and the properties of light, along with its interactions with the matter and also with the instruments which are used to detect it.

Small-angle approximation

Approximation that is valid when the size of a spherical mirror is significantly smaller than the mirror’s radius; in this approximation, spherical aberration is negligible and the mirror has a well-defined focal point.

Links:

  1. Spherical mirrors.

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