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General terms related to spherical mirrors: A mirror with the shape of a portion cut out of a spherical surface or substance is known as a spherical mirror. Concave and convex mirrors are two kinds of spherical mirrors available. The first mirrors used by humans were probably pools of water, according to the History of Spherical Mirrors in Human Civilization. Polished stone objects were the first known studied and created mirrors.
Chinese people habitually utilised silver-mercury amalgams to create spherical mirrors around 500 AD. Famous scientist Claudius Ptolemy used curved, polished iron mirrors in several of his studies. This article will discuss the two types of spherical mirrors and essential terminologies related to the spherical mirror.
Spherical mirrors can be of the following two types:
There are various jargons that are unique to each subject. We cannot fully understand an idea or chapter, if we are unaware of the definitions of subject-related terms. One such subject is the spherical mirrors. Below are the terminologies that candidates need to become familiar with in order to fully comprehend the concept of spherical mirrors:
Note: The principal focus ‘F’ will perfectly reside at the midpoint of the pole P and the centre of curvature C if a spherical mirror has a small aperture. A convex or concave mirror’s focal length is, therefore, equal to half of its radius of curvature.
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