11.24: Two wave pulses travel to the right toward a ri3fg(smpjag 5 dc. ,5oogid boundary 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 cog35cmo j, pd ga(5f.soincide?

  08.30: A light beam passes through the air and strikes the surface/rcew 3/.qf 0vlie a,e of a plastic block. Which pair of statements correctly describes the phase changes for the reflected wave and the transmitted wav3a/recvw iee lf.q,/0e?

  12.02: A ray of light passes straight downward through the point labeled B in i)37i/9yzkh*eoy0xvfy ;ml p qtg, u( the diagram shown. The ray reaches a flat mirror placed aox39k pey)0u/i;,i y t lygvh(z*fqm7 t 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 whenever light is incidwhh * t*b7ui6qent on

  05.18: A student hold a hand )ledcx5 h(hi syo)1i2mirror 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 mirsiohe5d x)c)(1l y2 hiror 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 a l0ugmkh47 c6k2irep8 b+qs*4whexny * ight ray changes direction when it enters a new material. Which one of the following choices is the term best associated yi6e4m e+kqh4*n28 spbwr0guk*xh c7 with this phenomenon?

  96.19: Light that has wave4w:ea/ct sf640 tqaz-e2jvuklength of 500 nm in air has wavelength 400 nm in a transparent material. v:jqze/f6 at0 4 2- cutwes4ak What is the index of refraction of the material?

  98.04: As sound travels from stee9f g9 u d(de5gftea *zv:7ig3el into air, both its speed and its:

  00.01: As a wave moves from one medium to a second medium with a different itswv u5)egq660fr3 ts ra/x+o 9/cn 7yixm0xundex of refraction which of the following wave xua t0 /w+69i0e5qt cyssx u/r6xnm)ogf73rvproperties would NEVER change?

  05.47: A sound wave generated from a tuning fork of single f *3lzujjmk/ kb 1gsf75requency 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 a1kk bjj/sflgzu 3m5 *7s it passes from air to rock?

  14.28: A waterproof speaker placed at the bottom of a s0fn9b8cq mws0 wimming pool emits a sounwm08 0bqns9fc d 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 * t )w99jo0gd)b7ylhryf b8pf a;v 7fbstrikes a rectangular glass block with an anglvr *byyp 7f7th) dab9fgj;98l owbf )0e of incidence 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 acy u9)4exzf*ti - r7rb ur8f86wn o1kns shown to the right. Which segment best represents the refr4i81*7)xn zwrncrbfotk6reu yf 89u -acted ray?

  98.17: Which diagram best repreq:w-zdsq +i fc/:twi: sents what happens to a ray of light entering air fro+:c w-zi/q:idsw:f tqm water? Air is at the top in all diagrams.

  94.11: The critical angle of a material is the a( /42 4uh ttzsc3-odffazn3z rngle of incidence for which the angle of refractiofzth s3f2 z(c44-udro3t/ azn n is:

  95.12: The principle underlying fiber opticsobz*b-ypy(wp.l2 l5npsh: t5 is:

  98.36: The critical angle in a transparent substa3(a5auwxl kv6 s*ms r-nce 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 mat 7 ps-lj*cs;lrerial X with an index of refraction of n = 1.5 to material Y with an index of refraction of n = 2.0. l-l;r*cs7pj s 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.e/:zr . pejp feuo)5m a piece of glass by observing the critical angle of the light in each material. Glass with an index of refractiof/5 u:)zre.em.oejp pn 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 as,nnl yyl+s;9t:b u(jir into a clear material. When the light makes an angle of incidence equasy:t ul(9nl,n +sy j;bl 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 em;umlyqs avs e9p:zuo7-; zl.)bedded in a material of index of refraction n. 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 value of np)e-yz;u7 ;ulq 9z. la:mvo ss is:

  95.31: A beam of light passes from medium 1 to fh b e0o7db46w;:bdyomedium 2 to medium 3 as shown in the accompanying figure. What is true about the rhoedyo bb: 7 dw06bf4;espective indices of refraction (n1, n2, and n3)?

  00.14: A beam of light passes from medt06kf i;hkir 3ium 1 to medium 2 to medium 3 as shown in the diagram. What may be concluded about the three indekh6ifrk i03t;xes of refraction, n1, n2 and n3?

  97.24: The accompanying diagram shows the path that a ln 2yv5yqz6w i5+lu m:fight 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 refraction?qy2l yz55imu:6 vnw+f

  09.34: The diagram below shows the path taken by a t:3ht )lp*gge3h; nrjxdlj23monochromatic light ray traveling through three medir;*t 3t3 jnxlgh g)jp:hel3 2da.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 trav iuw:nz6j d*/8per (gveling 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 incilad0p371j cs sdent on the surface of a rectangular block of glasssc ajl0s317d p 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 intr)l:dlk 7 p5 kxf/*ltzo a piece of glass. Which one of the labeled arrows best indicates the path of the light ray after it enters the glass? r /*)p:kd5xftlllk7z

  14.44: A ray of monochromatic light enters the right-tria:zm wi;0zutgb3tgq me(* -s n3:lgid(ngular glass as shown. The glass has an index of refraction of 2.00 and it is surrounded by airm g (e*gwi0lb33qd(z;zntgiut :ms: -. Which one of the lettered rays shows the path of the light after it exits the glass?