Buscar
Estás en modo de exploración. debe iniciar sesión para usar MEMORY

   Inicia sesión para empezar

level: Refraction of Light

Questions and Answers List

level questions: Refraction of Light

QuestionAnswer
what happens to critical angle as refractive index of a substance increasescritical angle decreases
NANA
what is refractionwhen the speed and wavelength of a wave changes upon going from one medium to another of different densities (frequency never changes, direction changes sometimes)
what is meant by refractive indexa measure of the ability of the substance to change the direction of a beam of light
what is the relationship between refractive index and the two media usedn=sinθ1/sinθ2 where n is refractive index medium 1 is air/the less dense medium medium 2 is the material/the more dense medium
what is meant by absolute refractive index of a mediumthe ratio of the speed of light in a vacuum to the speed of light in that medium
what experiment could be used to determine the refractive index of a mediumshine a ray of light though a glass block a range of angles of incidence and angles of refraction should be obtained for each angle recorded, the sin of the angle should be calculated then a graph can be plotted of sinθ1 against sinθ2 the gradient of the graph will be the refractive index of the material
what three formulas can be used to calculate the refractive index of a materialsinθ1/sinθ2 λ1/λ2 v1/v2 (sinθ1/sinθ2 = λ1/λ2 = v1/v2)
what is refractive index dependent onfrequency of light the higher the frequency of light, the greater the refractive index
what is the critical anglethe angle of incidence which results in an angle of refraction which is exactly 90 degrees
what is total internal reflectionwhen no refraction occurs and is reflected inside the block at angles of incidence greater than the critical angle
what is the relationship between critical angle and the absolute refractive index of a mediumsinθc=1/n where sinθc is critical angle n is absolute refractive index
does frequency of light change when moving from one medium to anotherno
what is the relationship between refractive index of a medium and density of that mediumhigher the refractive index, more dense the medium is
what happens to wavelength when moving from one medium to anotherit does the same as speed if speed increases from one medium to another ,wavelength will also increase
why does green light refract more than red lightgreen light has a greaater frequency the higher the frequency the higher the refractive index theefore green light has a greater refractive index
what happens to critical angle as refractive index of a substance increasescritical angle decreases