11.24: Two wave pulses travel to the right toward a rigid by1aaqtymos 3 hr1g218- 5volcoundary as shown. After reflection of the triangular pulse, the pulses will interfere. Which one of the following pictures best represents the superposition of the pulses when the centers of the individual pulses coincide?c1vhsyy8m 3oq11alr- 5 gato2

  08.30: A light beam pass4lzxa(q.xwcn 5h)yzq,uk*h /a;p6 bhes through the air and strikes the surface of a plastic block. Which pair of statements correctly desc,) ;l(pc*zbn hxhh.q ak5/z4qayx w u6ribes the phase changes for the reflected wave and the transmitted wave?

  12.02: A ray of light passes straigh md2d eu3i9sf1kwk6r.koa/io 2 6dh,5wf5 fqlt downward through the point labeled B in the diagram shown. The ray reaches a flat mirrorikw6od /f12k3i ukrlws2aqf, o955 f 6mddh.e placed at an angle $\Theta$ to the horizontal as shown. Which one of the locations labeled in the figure best represents the point through which the ray reflected from the mirror will pass?

  00.04: Specular reflection occurs when1yy i9 r)xj)m8 lm9r :4scwohxever light is incident on

  05.18: A student hold a hand mirror to observe the back 2 ht tv,q0 fy:zi;ks4oof her head while standing in front of and looking into a wall mirror. If she is standing 4 ft in front of the wall miryis4vh 2,ozkqt;ft0 : ror and she holds the hand mirror 1 ft behind her head, she will see the back of her head how far behind the wall mirror?

  14.25: It is observed that n+0 d+vsbtxqe7 (+vd dx;)gqfa light ray changes direction when it enters a new material. Which one of the following choices is the term best associated with this phe +qqv;d 7v+b(ets+x)dg0nd xfnomenon?

  96.19: Light that has wavelength of 500 nm in air 1s 1eq:/rf7lpl3jow(v1c ;bfn8 nb vthas wavelength 400 nm in a transparent material. s/ pf7qnl b;n1l3f:tv1v1 re(o b8jcw What is the index of refraction of the material?

  98.04: As sound travels from steel into air, both itss -w(nv ue4jb q+jb 0fjxr*sr am4/8l( speed and its:

  00.01: As a wave moves from one m7m-j p85 4o; gs/ mctq tq:vxj/uue1zoedium to a second medium with a different index of refraction which of the following w8qogzqm1us ct-j4mt/;ejv/p 5xu o:7ave properties would NEVER change?

  05.47: A sound wave generat +)7n7hneq(4kyunqzn* /f kfiy in m;9ed from a tuning fork of single frequency travels from air (with speed of sound 340 m/s) into rock (with speed of sound 1500 m/s). Which statement is true about the wavennyy n;(m 7*ni7q/eq k9ffihzn+4u)klength and frequency of the sound as it passes from air to rock?

  14.28: A waterproof speaker placed at the bottom of a swimming pool emibn5 me rhny9dt6u 2ytt(8 4o,wts a sound wave th5 nn(4wtey9ytr8,o ut b6m2dhat travels toward the surface of the water. In the water, the sound wave has a frequency $f_{water}$, wavelength $\lambda_{water}$ , and wave speed $v_{water}$ . When the sound wave enters the air it has a frequency $f_{air}$ ,wavelength $\lambda_{air}$, and wave speed $v_{air}$ . Which one of the following relationships correctly compares the frequencies, wavelengths, and wave speeds of the waves in the air and water?

  02.33: A short burst of white light strikes a rectangular glasww w3n fi/t:f8 dzf;1us block with an angle of inciden:ffu8fw di/zn1; wwt 3ce of $0^0$. Which color of transmitted light would be the first to emerge from the opposite side?

  96.02: A beam of light is directed toward a point P on scmx4nr ,wr). a boundary as shown to the right. Which segment best represents the refracte)wms4xr. c,rnd ray?

  98.17: Which diagram best r1n; )qycdky0ow )i8mih)v4njepresents what happens to a ray of light entering air from water? Air is q kj;im8d h0)oi1 wyn)cy )n4vat the top in all diagrams.

  94.11: The critical angle of a material is the angle of incidence for05zi(i3yyx( s .jpqk f which the angle o ( yj5(xiz 3.qskpfi0yf refraction is:

  95.12: The principle underlying fibe . rjg8,piun2cm4xrwx)h i z./r optics is:

  98.36: The critical angle in a transparer p*lo4 sj*(ffnt substance surrounded by air is $30^{\circ}$. The speed of light in
the substance (in multiples of $10^8$ m/s) is most nearly

  01.28: Light travels from material X withm 5*7e k+b ndqa0,z )smfcji+i an index of refraction of n = 1.5 to material Y with an index of refraction of n = 2.0. If the speed of light iii)z e7bcm+,kn d+0sm jfqa*5n material Y is v, what is the speed of light in material X?

  03.15: A jeweler can distinguish between a diamond and a piece of glass by ob;kxn+3pvk:s kch q/ k+serving the cris+ck3k+hnk qk/pv x: ;tical angle of the light in each material. Glass with an index of refraction of 1.52 has a critical angle of $41.1^{\circ}$ while a diamond with an index of refraction of 2.42 would have a critical angle of:

  05.26: Light shines from air into a clear material -fni t83se(vu. When the light makes an angle ofn3ius f (ve8-t incidence equal to $30.0^{\circ}$, the light refracts at an angle of 1$5.0^{\circ}$. If the light is shone from an angle of incidence of $60.0^{\circ}$, what is the angle of refraction?

  95.40: A Metrologic laser is embedded in a material of index of refraction n.5fmrp 1ji(4dx The laser beam emerges from the material and hits a target. See the accompanying figure for the position parameters of the laser and target. The vdi5r4xpf1j( malue of n is:

  95.31: A beam of light passes from medium 1 to medium 2 to medium 3 as shown.nd vmz)66d8 ohok jsc8+r pv4 in the accompanying figure. What z . jdkv)68cv4sdrn6+ hopmo8 is true about the respective indices of refraction (n1, n2, and n3)?

  00.14: A beam of light passe.)) q8e t*e meupcus4es from medium 1 to medium 2 to medium 3 as shown in the diagram. What mam)ceu.4)eq epes8 u*t y be concluded about the three indexes of refraction, n1, n2 and n3?

  97.24: The accompanying diagram shows the path that a light ray takes passa+b c3s8syi wn kq/90king through three transparent materials. The indices of refya qss38 b/9wi0kkn+ craction in materials 1, 2, and 3 are n1, n2, and n3, respectively. Which of the following best describes the relation between the indices of refraction?

  09.34: The diagram below shows the path ty 1dy sdbb3tk6vi8 ,nx i 8m-d,,cw1seaken by a monochromatic light ray traveling through three media.The symb tddi d,bn,byyckvx61,-s1 8is8wm3 eols $v_1$,$\lambda_1$ , and $f_1$ represent the speed, wavelength, and frequency of the light in Medium 1, respectively. Which of the following relationships for the light in the three media is true?

  99.26: A beam of light tra:sye1nui aua8pe 3yx)wp5uv0,0lca 4e: 0 lnhveling in glass ($n_g$=1.5) strikes a boundary with air ($n_a$ =1.0) at point P.The angle
of incidence is $60^{\circ}$ as shown in the diagram. Which ray would best indicate the beam’s path after point P?

  04.35: A ray of light is incident o9x6 yi v8q eu0vw1/5fyao5 ipan the surface of a rectangular block of glass/vu wy 150o8ivapqix9y5 ef6a at an angle of $45^{\circ}$. It refracts into the glass and then strikes the side of the block as shown in the diagram. What would be the most likely path of the light after striking the side of the glass block?

  13.27: Light of wavelength 600nm is transmitted from air into a piece of glatkbohah*n72+6 rpddrv(5 z -hss. Which one of the labeled arrows d(h 6-t5ka +dnv2zrhh*bpr 7obest indicates the path of the light ray after it enters the glass?

  14.44: A ray of monochromatic light enters the right-triangular glass as z1+w/sm ;ss3c6wr kcrshown. The glass has an in/1wzr;c ss rkwcms36+dex of refraction of 2.00 and it is surrounded by air. Which one of the lettered rays shows the path of the light after it exits the glass?