'O' Level Standard Questions - RefractionQ8. A prism made of glass with a refractive index of 1.50 has two angles of 75° and one of 30°. Determine whether a ray of light be reflected and/or refracted at one of the longer sides if it enters the prism normally onto
To determine whether total internal reflection will occur we need to determine the critical angle of the glass. Snell's Law: n1sin θ1 = n2sin θ2nairsin θair = nglasssin θglass sin 90o = 1.50 x sincritical for glass
|
Follow me...
|