A refractometer is a device used to measure the refractive index (n) of a substance. In this article, we discuss what a refractometer is and how it works, the different types available and their ...

Based on: Refraction, and How to Refract. Including Sections on Optics, Retinoscopy, the Fitting of Spectacles and Eye Glasses, etc. By James Thorington, A.M., M.D., Professor of Diseases of the Eye ...

Refraction close refractionProcess by which a wave changes speed and sometimes direction upon entering a denser or less dense medium, eg a light ray changes direction when refracted by a lens. of ...

Light refracts and reflects when it reaches a medium with a different index of refraction. The index of refraction of mineral oil is almost identical to that of a glass tube, so light does not refract ...

Refractometers are versatile in their design and use, and are able to provide results as refractive indices, or in other cases, as direct measurements of parameters such as soluble solids, sugar ...