RECITATION-CH35-36

# RECITATION-CH35-36 - RECITATION 14 CH 35-11 With an...

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RECITATION 14 CH 35-11. With an incident angle of 1 45 , θ = the light will refract at the surface of the glass, making an angle 2 with the normal in the glass, where 2 1 sin sin . n = The light will strike the other glass surface at point B at an angle of 3 2 90 . = - At this angle, the light undergoes total internal reflection, so we know that ( 29 3 2 2 sin sin 90 cos 1. n n n = - = We square both these results and add them to obtain ( 29 2 2 2 2 2 2 1 sin cos sin 1. n + + We use the trigonometric identity 2 2 2 2 sin cos 1, + = and find the bound on the refractive index: 2 2 1 sin 1 sin 45 1 1.22. n + = + = CH 35-19. The light is fully polarized when incident at the Brewster angle: 1 1 2 B 1 1.53 tan tan 49.0 . 1.33 n n - - = = = CH 35-37. The lens is diverging, so its focal length is 30 cm. f = - The object distance is 20cm. o = Thus, from Eq. 35-18, the image distance is ( 29 ( 29 ( 29 ( 29 20 cm 30 cm 12 cm. 20 cm

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## This note was uploaded on 06/01/2008 for the course PHYS 232 taught by Professor Goksu during the Spring '08 term at Millersville.

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RECITATION-CH35-36 - RECITATION 14 CH 35-11 With an...

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