The critical angle for total internal reflection at a medium-air boundaryGroup of answer choicesis independent of the wavelength of the light in the mediumis greater for a material with a smaller index of refractionmay be greater than 90onone of these

Respuesta :

is greater for a material with a smaller index of refraction

Explanation:

Sin a = 1/n

Where:

a = critical angle

n= refractive index

n is inversely proportional to a