11.24: Two wave pulses travel to the right torz03g lajf9e-rxyl; 0 ward a rigid boundary as shown. After reflection of the triangular pulse, the pulses will interfere. Which onlyx0a-9 zr03fj ;le rge of the following pictures best represents the superposition of the pulses when the centers of the individual pulses coincide?

  08.30: A light beam passes through the aiwi3 gmt/ ow5*ar and strikes the surface of a plastic blooai3tgw5*w/m ck. Which pair of statements correctly describes the phase changes for the reflected wave and the transmitted wave?

  12.02: A ray of light passes straight downward through the poc wz4 o;:nw-kfint labeled B in the diagram shown. The ray reaches a flat mirror 4 w k-:nzfw;ocplaced 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 whenever9re5du( g qvb y;6u9js light is incident on

  05.18: A student hold a hand m b;q.7iopz/i1ihc 0nz irror 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, she will see the back of hepnczq/b 7oiz0 i;i1.hr head how far behind the wall mirror?

  14.25: It is observed that a light ray changes direction when 8g2j-3uhytx4faj sn;it enters a new material. Which one of the following choices if y3xsja-gjn 2tu8h4;s the term best associated with this phenomenon?

  96.19: Light that has wavelength of 500 nm in air has wjpiep .pxdj26 ;dib:. g9fuv+ avelength 400 nm in a transparent material. What is the index of refraction of the matfdji9p+dpivjb.:x6. u g ; 2peerial?

  98.04: As sound travels from steel into air, both its speed ana9 rtafjrw35f:9w 7nhd its:

  00.01: As a wave moves from ont 2z3 e xr +f9zc 4q.)v+qnnv-v7u+x esstrr9ce medium to a second medium with a different index of refraction which of the following wave properties would N49zsr-fcsu.qvtx)+v nx cr+qne7vt9re2+3zEVER change?

  05.47: A sound wave generated from a tuning fork of single frequency travels eoouu:mnu5 :,wmm: b9 from air (with speed of sound 340 m/s) into rock (with speed of sound 1500 m/s). mewm :o5: uu:mn9uo b,Which statement is true about the wavelength and frequency of the sound as it passes from air to rock?

  14.28: A waterproof speaker placed at the bottom of a swimmgc ) jy4yn9tet1 zy3os8n/;mn ing pool emits a sound wave that travels toward the surface ;y8non1jcm 9yy/n t3zs)tg 4eof 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 glass b/ ieqo wh-1n6llock with an angle of incidencwenil-q o1/6h e 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 directeo).b ba0zvdb(2m.kt w d toward a point P on a boundary as shown to the right. Which segment best represents the refracted 0) 2(bob .zmbtdaw.vkray?

  98.17: Which diagram best represents what happens to a ray of light entervun28x; v 6f i.qq,r9vrkaz+ii h0d*ving air from water? Air is at the top in al2 6 hzqaniv.q;9 rvxidui r+kv*0v ,8fl diagrams.

  94.11: The critical angle of a ma7th-/w9onk4cyj t2 lcterial is the angle of incidence for which the angle of ct4l-7jkwh/o9c nty2refraction is:

  95.12: The principle underlying fiberdtp b4h:t3/oq optics is:

  98.36: The critical angle in a trans fo:l-.1evq 6bbnk j2h hia0d;parent 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:b yo/ k)ruv3h *xw8qu refraction of n = 1.5 to 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 light8vxq u ok*wu )ybh:r3/ in material X?

  03.15: A jeweler can distinguish between a di7xjbw9 wj64 mfamond and a piece of glass by observing the critical angle of the light in each material. Glass with an index off4m9 jxwwj6 7b 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 materiz; u,6gs- crsog.f0oval. When the light makes an angle of incidence ofg 6 s0-rcs,uogv; .zequal 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 refrgzau .br4i);g5/ ki vjnyw;-m action n. The laser beam emerges from the material and hits a target. See the accompanying figure for the posi-m5r; /ivb4wn. gj;iky gz au)tion 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 7 4g1qqusf/n qmedium 3 as shown in the accompanying fiq7/14gqsfnu qgure. What is true about the respective indices of refraction (n1, n2, and n3)?

  00.14: A beam of light passes from med;w l v5oe7l htsxbc3 m))+vdf:ium 1 to medium 2 to medium 3 as shown in the diagram.f w;dbt3ls lemc)h:vvx5)+ o 7 What may be concluded about the three indexes of refraction, n1, n2 and n3?

  97.24: The accompanying diagram show qz8fns-(mt s,s 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 following best describes the relm ,ssz(fqt-n8ation between the indices of refraction?

  09.34: The diagram below shows the path taken by a monochromatic .fvx- )xv1ycw*y9kdga-pu: s light ray traveling th af )gc-upsxdvk 9wyy1:*v-x.rough three media.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 glasjhch o: fevs4,c66t4yi 8 gw(hs ($n_g$=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 rectangula(j5nw.*ztf lgr block of glass at an w5 g*zlnj.tf( 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 frl2ny/ sodbk:+om air into a piece of glass. Which one of the labeled arrows best indicates the path of the light ray after it enters the glbyl+ d2n /so:kass?

  14.44: A ray of monochromatic light enters the right-triangular glass aticqu5wv2 3* wk,pb 8ui; 7tucs shown. The glass has an index of refraction of 2.00 and it is surrounded by air. Which oneiiu5u tp*c bt2w8w,7k uqc3v; of the lettered rays shows the path of the light after it exits the glass?