11.24: Two wave pulses travel to the right toward a rigid boundoseur c9s3lv ddlt5tpx,d*- ;+a;z1jary as shown. After reflection of the triangular pulse, the pulses will interfere. Which one of the following pictur 5,oadrxtv d 1 9s*;-euc3djsltl z;+pes best represents the superposition of the pulses when the centers of the individual pulses coincide?

  08.30: A light beam pass9n05zr+vyrpjb(d4xl/oep * v es through the air and strikes the surface of a plastic block. Which pair of statements correctly describes the phase changes for the reflected wave and the xdn+j b5 rp(*z v0eoly4/rv9p transmitted wave?

  12.02: A ray of light passes straight downward thr0 rv5zcur24heu9 i 3ny:jh qo*ough the point labeled B in the diagram shoq25unyrrh 9 chzi:3e0voju* 4wn. The ray reaches a flat mirror 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 wheneve2.0rwyguf 5t tr light is incident on

  05.18: A student hold a hand mirror to observe the back of h2jmwd.v3gpb 6 er head while standing in front of and looking into a wall mirror. If she is standing 4 ft in front of the wall mirror and she holds the bp vg.3 wd62mjhand 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 a lighxk4k 8 +2,rth.mpdopet ray changes direction when it enters a new material. Which one of the following choices is the tehde8 kxp.mr 4 pkt+2o,rm best associated with this phenomenon?

  96.19: Light that has wavelength of 500 nm i 3deed+x4tvo3 :+zkk hn air has wavelength 400 nm in a transparent material. What is the index of refraction of the material?kd:3t hx+do +kev ez43

  98.04: As sound travei 3c cs,uvo2i;fr*,ft rayx. 6ls from steel into air, both its speed and its:

  00.01: As a wave moves from one medium to .l n( 0 v+xc* bs9np7hhxcxt9ha second medium with a different index of refraction which of the following wave properties would NEVER chxntclbx+ (.p09hc7hv h x*s n9ange?

  05.47: A sound wave generatadwi fn4):- qxp7xt)aed 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 wavelength and frequency of the sound as it passes froi)4xa)w7 t d-n q:fapxm air to rock?

  14.28: A waterproof speaker placed at the bottom q1di4 f8 cmei6of a swimming pool emits a sounm4fqii6e1 c 8dd wave that 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 rectangularqmhhnem/7w1 v8 jf uj sk7c896 glass block with an angle of in6eujqmwv8nkcs/ 7m 718fhhj 9cidence of $0^0$. Which color of transmitted light would be the first to emerge from the opposite side?

  96.02: A beam of light i9 xcvf1uu zz *l x0r98sfaf*-xs directed toward a point P on a boundary as shown to the right. zzs 89l afx*ur9x xfc0-f *v1uWhich segment best represents the refracted ray?

  98.17: Which diagram best represents what happens to a ray of l06zc zf8 zn,mdl9;mmt 9o:uviight entering air from water? Air is at the top in all zv:m0l9c,mmiz6o nu;9d 8 z tfdiagrams.

  94.11: The critical ayfjag//g36 1yqcnj-f w s-3( fy9zybtngle of a material is the angle of incidence for which the angle ofnfjbf(61-yy-9/3 3agwt/fqyszj cg y refraction is:

  95.12: The principle underlying fiber optics is:y+ p9d eg(x4la fiif7(

  98.36: The critical angle in a transd7ee62/zvj;m z x. yiyparent 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 with an index of refraction of n = 1.5 to wx n(3g oh9ebtxq-8s,er+ye :material Y with an index of refraction of n = 2.0. If the speed of light in material Y is v, what is the speed of light in matexerg9sehq+to bn 3-(w y:,8 xerial X?

  03.15: A jeweler candee /vy quj8ip. 1d49e distinguish between a diamond and a piece of glass by observing the critical angle of the light in each materiudj/y8e.ieqd v p49e1 al. 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 fro4vwo9 1 y f7lof9/bfrdm air into a clear material. When the light makes an angle of incide4o vd1wlf fo9fy/9 b7rnce 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 retg u7we9ow)6 kfraction n. The laser beam emerges from the material and hits a ttw9gew o76k) uarget. See the accompanying figure for the position parameters of the laser and target. The value of n is:

  95.31: A beam of light passes from medium 1 to medium 2 to medium 3 as sp(. +tvry pbyvi,p66 chown in the accompanying figure. What is true about the respective indices of p,v6b. (yrpt +ypvc6irefraction (n1, n2, and n3)?

  00.14: A beam of light passes from medium 1 to medium 2 to medium 3 as shown iz0 qibxvdo7)p*1n r9p n the diagram. What may be concluded about the threq7*9 rd)bpzn i10xvpoe indexes of refraction, n1, n2 and n3?

  97.24: The accompanying diagram shows the path thab*e y91yzx508 +df, bnzipnogon5t73l h qe(bt a light ray takes passing through three transparent materials. The indices of refraction in materials 1, 2, and 3 are n1, n2, and n3, respectively. Which of the following best describes the relation between the indices of refractionn7 f( tey98l+xizogydhz* 35bqn,bpe 1bo0n 5?

  09.34: The diagram below shows the path taken by a monochromatic li z:ynem+7dmcfp7f9fa17x m f5ght ray traveling through three media.The5fyaxm n+7fc:mped zm7f 9f71 symbols $v_1$,$\lambda_1$ , 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 lig+ f k;;dm)dw06yamsakht traveling 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 on the s de*g4md:4xj/kdoxwsb*0sj 4urface of a rectangular block of glass at as 4 /ddm 0k4*jxjes4dwgo*bx:n 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 transmitg i3p 1yrr1n9rbkhd7 )see,o6ted from air into a piece of glass. Wig1rehp1o)n,dr 6 3 9e r7kysbhich one of the labeled arrows best 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 showld 4guc a3*9krn. The glass has an index of refraction of 2.00 and it is surrounded by air. Which one of the lettered rays shows the path of the light after itkla49cu dgr* 3 exits the glass?