Question

4) The refractive index of a substance describes: a) how strongly light is bent by the substance. b) whether a substance can polarize light. c) whether a substance can split light into two plane polarized rays. d) the amount of diffraction occurring within a substance. 5) The refractive index of a substance is ordinarily determined by:

Answer 1

ci) Refractiveindex is a value calculatted fom the Iatio of the speed of ligh in a vacn to that in a secand medium at gredter clensity Itis defined cs whexe cis speed of lightin vaccum and v is the phase vefecity mecium i The sefractive index determines how much the path of light is bent an efacted 1ahen entening clescribed by snell's law of yefaction iThe speed of ught in a medium is of ight in a materialThis is the wavelength imilaxy of that light in vaccum This implies that vaccuno has a refracive index of and that the frequency of oave is nat affected by the yefractive index While the rehgchive index affects wavelenath it depends on equency colaur and enesy so Yesulting dfference ih the bendin q angles canses twhite light to splitinto its consttuent calaurs his is calle d dispession H can be observed in prism and ainb lows and chyomatic abeTYd tion in lenses