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define the following term with reference to spherical mirror : pole , centr of curvature radius of curvature and principal axis |
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Answer» herical mirror - In a spherical mirror , the pole refers to the CENTRAL point of apparture . It is also known as the central point of the reflecting surface . The CENTRE of curvature refers to the centre of the SPHERE , from which the mirror was cut . The distance between the centre of curvature and the pole of a spherical mirror is known as the the radius of Curvature Principal axis is an imaginary line passing through the pole and the centre of curvature of a spherical mirror .________________Additional INFORMATION - The distance of any OBJECT from the pole of a spherical mirror is known as object distance. The distance of an image formed by an object from the pole of a spherical mirror is known as image distance . ______ |
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