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Unformatted text preview: Physics 133 11:30 Winter 2008 QUIZ 3 January 31, 2008
Name ‘ /\ V
Instructor: Barrett Davis George Hinton Knobbe Note: Circle the name of your instructor (above). Note: There are 15 minutes for this quiz. Note: There is one problem with four parts; see the back of the page. Note: The numbers in [ ] are the point totals for each part of the problem. Note: This is a SHOW-WORK problem; you must show your work to earn credit;
you CAN earn partial credit. Note: Here are some simple equations which may, or may not, be useful. n1 sin61=n2 sint92 vzc/n. Af=v A plane surface separates two transparent materials, A and B, which have refractive
indices 11;; and 71.3 respectively. a) If the speed of light in material A is 1.54 = 2.50 X 108 m/s, ﬁnd the index of refraction
of material A, Mi. [Note: The speed of light in vacuum is c = 3.00 x 108 Ill/8.] l4] .
r :1; 1 spec/<28 ..
Ll I " 2.60x/Og _' AZO b) Find the wavelength in material A, AA, of light whose frequency is 1‘}; = 5.00 x
101‘1 Hz. [4 1
...' _...— ' ,— 1'0"
Aﬁlﬁff ‘ we ’9 )274 1%: Z’JWQ 8 6. 0% r2 a! dry—v 6:00KlOF7m : 609 71m 2 0) Light from region A is incident on the interface between A and B at an angle of
incidence 6,4 = 45°. If the index of refraction of material B is n3 = 1.50, ﬁnd the
angle of refraction of the light in B , [93.  at We : rim/leg
WE : (ﬁle we :(%g)2m(450) €75 d) For light from region B incident on the interface between A and B , ﬁnd 66, the
critical angle for total internal reﬂection.  J90 : 77/? 7' 774 T; 1-; ﬂy) /z5O ...
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- Spring '08
- Snell's Law, refractive index, Total internal reflection, Davis George Hinton