11.24: Two wave pulses travel to the right toward a rigid boundary a 3eswe(x*g g,kr0u r10 uku/ccs shown. After reflection of the triangular pulse, the pulses will interfere. Which one of the following pictures bce*(gu r g03k uk1c,u0x w/esrest represents the superposition of the pulses when the centers of the individual pulses coincide?

  08.30: A light beam passes through to- yf5bidrm;7he air and strikes the surface of a plastic block. Whichr-md bi5; 7oyf pair of statements correctly describes the phase changes for the reflected wave and the transmitted wave?

  12.02: A ray of light passes59:odzao xdf1 straight downward through the point labeled B in the diagram shown. The ray reaches a flat mirror placed at o9a:df 5o xd1zan 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 whenever light is inciddrq z.pl88 l0g55b baient on

  05.18: A student hold a hand mirro s;e8 hg:s yp9yu4mm)cr to observe the back of her 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 hand mirror 1 ft behind her head, shm9g4y e)ps 8c;smu hy:e will see the back of her head how far behind the wall mirror?

  14.25: It is observed that a light ray changes direction when it enters dz w7vlp61 z(. wo5hutb vqkjld:64u- a new material. Which one of 7:4v zb1 zwhq (6dt5u.djkwp6 ll- vuothe following choices is the term best associated with this phenomenon?

  96.19: Light that has 9ppp9zbyenx)mzy* 6k2 t w rc,3+enq:wavelength of 500 nm in air has wavelength 400 nm in a transparent material. What is the index yzpy9 +p3pwkq:29cbx 6 )ne*tem ,n rzof refraction of the material?

  98.04: As sound travels from sks*my4; e d57rt;ja zateel into air, both its speed and its:

  00.01: As a wave moves from one medium to a second medium with ag/c 6qfavm* a/ different index of refraction which of the following g* c q6a/m/favwave properties would NEVER change?

  05.47: A sound wave generated from a tuning fork of single frequency travels frog52:xaq8aq rc m air (with speed of sound 340 m/s) into rock (with speed of sound 1500 m/s). Which statement is true about the wavelength ax2aqr5a qgc:8 nd frequency of the sound as it passes from air to rock?

  14.28: A waterproof speaker placed atpevrg7a-8t4 td:j0v/.wmod lpf o4n- the bottom of a swimming pool emits a sound wave that travels toward the surface ofv-l p/ odr:v8f-te.nag p7 t40odj4mw 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 ligh p y* ite:,qj lwhh:4ip(qx*neuqw.,:t strikes a rectangular glass block with an angle of inciden,px*q ii ,pn:qwy :hq4(l. jtw*:hueece 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 a boundary as shown to hrsi:gto 7nq07jk r6 pm5k(c6 the right0hr c6o6km j(7qts: 5 rpking7. Which segment best represents the refracted ray?

  98.17: Which diagram best represen0:y k -roj+sfkfuu4 mmafg* 02ts what happens to a ray of light entering air from water? Air is at the top in all 4gsk-yj+fa m:f0kuo 2m*0fur diagrams.

  94.11: The critical angle o1 (,ujkweg2gmntnd5+f a material is the angle of incidence for which the angle of g1eu2 j5nkwm +tdgn (,refraction is:

  95.12: The principle underlying fibka8.ls6 diea/er optics is:

  98.36: The critical angle in a transpar-6oy ga 83ogiyjt8pbc 05ufu 1ent 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 = 10niqvfxx.tb ;j9zrl 2 +)d au:.5 to matefxvj b:d.al)z+92uxtn0 r qi; rial 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 material X?

  03.15: A jeweler can distinguish between a diamond and 9,fxt -eo7;f hxw7nctw4kr k/klu 3k.a piece of glass by obserwkfeu7f;- 9cl3 r/wh. ot47xtx nk,kkving the critical 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 maj4r r;dxao9z4 terial. When the light makes an angleo4a jr9;rd4xz of 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 ixt/ z5fyi+- onc est;tin i (dy69o) kx1/4jqqndex of refraction n. The laser beam emerges from the material and hits a target. See the accompanying figure for tzyoiq9nx(6t/x-f q jic54+ien;t o ) s/dt y1khe 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 shown ;gg.jund80qssz acf+ u6i.d, in the accompanying figure. What is true about the respective indices of refra.ud.sg qsd ,0g+fj 6a8 ;nziucction (n1, n2, and n3)?

  00.14: A beam of light passes from medium 1 to medlwj7f *r0 bgu+ium 2 to medium 3 as shown in the diagram. What may be concluded about the three indexes of refracuwr gfj0lb7*+tion, n1, n2 and n3?

  97.24: The accompanying diagram shows8u ffab53s.ir the path that 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 followai 8 f3fu5brs.ing best describes the relation between the indices of refraction?

  09.34: The diagram below sho hn-w 1akevuxl-y)8w)eq jb:0ws the path taken by a monochromatic light ray traveling through three men-ae l1x: w8h))kyvu -0qj bwedia.The 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 light traveling in ipspk yd1;z*9glass ($n_g$=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 surface of a rectam /:ig(qupbp,g zz2 qc r6.lw(ngular block of glass ai : /g.qwm(qprp z,6zu l2(gcbt 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,qr3se(i pitmd dfbq6 .lbmr7k*g702 into a piece of glass. Which one of the labeled arrows best indicates the path of t7 dm7mrit q qd0,e(b 6s3rpk b.2*lfgihe light ray after it enters the glass?

  14.44: A ray of monochro*tm,,a eqq+ esmatic light enters the right-triangular glass as shown. 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 ,m eeqq,* ast+it exits the glass?