Diffraction grating and a plano convex lens refractometer
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Date
2017
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Namibia
Abstract
This paper describes a method of finding the refractive index of liquids using a thin plano-convex lens and a transmission diffraction grating. Light from a low power helium- neon laser is diffracted by a transmission diffraction grating and the diffracted light is received by the thin plano-convex lens L and focuses it at the image distance v. A formula is derived to calculate the refractive index of experimental liquid at a particular
temperature.
Description
Keywords
Refractive index, Diffraction granting
Citation
Singh, S. (2017). Diffraction grating and a plano convex lens refractometer. International Science & Technology Journal of Namibia, 9, 107-111.