UGECHI PEACE N.
&
OSU, AZUNAMIBEBI DERIKUMA
Abstract
The formation of images could be carried out in concave and convex mirror, this could be done
through digital and analog conversion. Where this paper focuses on the process involved in the
digital and analog conversion in the formation of images in concave and convex images. The
study of image formation encompasses the radiometric and geometric process by which 2D
images of 3D object are formed. In the case of digital images, the image formation process also
include analog to digital conversion and sampling. This paper will emphasize on formation of
images. It highlights some key points such as: introduction, formation of images in concave and
convex mirror, measurement of focal length of a mirror, uses of mirror, refraction by plane
surface, law of refraction, refractive index, critical angle and total reflection, measurement of
refractive index,solids, dispersion, dispersive power, and conclusion.
Introduction
An image is formed because light emanates from an object in a variety of directions. Someof the
light reaches the mirror and reflects on the mirror according to law of reflection. In physics,the
point where the entire reflected light ray converges is known as image point. Not only is it the
point where lightrays converge, it is also the point where reflected lightrays appear to an observer
to be diverging from. The image location is the location where reflected light rays appears to
diverging from.
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