This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: HOMEWORK 2 with Solutions 1(a) A light beam is incident perpendicular on face A of an unsymmetric 30 prism of refractive index n = 1.5 as indicated. Determine with the appropriate laws and describe with a sketch how the beam propagates, considering both the refraction and reflection processes which occur at both faces B and C. (1) On the face B, Incident angle i = 30 , then the reflected angle r = 30 and the transmitted angle sin t = 1.5 sin i = 0.75 t = 48.6 (2) On the face C, the same as on the face B. 30 n=1.5 90 light 90 A B C Air 30 30 30 30 48.6 48.6 1(b) A light beam, consisting of a mixture of blue, yellow, and red light, is incident perpendicular on the face of a symmetric 90 prism as indicated. The refractive index of the prism is n = 1.420 for blue light n = 1.410 for yellow light n = 1.400 for red light. Determine and describe with a sketch how the incident light beam proceeds for the three colors both in refraction and reflection. On the inclined face, the incident angle for three colors (R,Y,B) i = 45 the transmitted angle sin t = n sin i For RED , sin t = 1.400 sin 45 t = 81.9 For...
View Full
Document
 Fall '04
 DIEROLF
 Work, Light

Click to edit the document details