11.24: Two wave pulses travel to the right toward a rigid boundary as shodc6+ g0a5x z0wwf iccg0z5lfvx u*um8(z3.rjwn. After reflection of the triangulj0lf uzgg zc vw8+c630umcxa5zriw.*(0dx f5 ar 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?

  08.30: A light beam passes throug)i*wx5ru-f c8w+cr ;edbtl; (vfex+ wh the air and strikes the surface of a plastic block. Which pair of statements correctly describes the phase changes for the reflected wave(xxb++fwr dul58ri) *wve;cf- ectw ; and the transmitted wave?

  12.02: A ray of light passes straight downward through 6) yh*x air/dcthe point labeled B in the diagram shown. The ray re6y h adc)ir/*xaches 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 whenever light is incident onan24n+(mybf3b s1d bp

  05.18: A student hold a hand mirror to ob fqx7wsxec8 02xv*c79qz ; htmserve 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 her head how far behind the;ccx*ve7 2 m0 7s9xfqtz xqhw8 wall mirror?

  14.25: It is observed thaq0oyd507+o neae0 s wjt a light ray changes direction when it enters a new material. Which one of the following choices 57j0q oeey0wnos+0 dais the term best associated with this phenomenon?

  96.19: Light that has wavelength of 500 nm in air has wavelength 400 nm in ahd.6v5 1)kz/-gfb cwvj f z f+oy-aa,c transparent material. What is the index of refractionkcb1zj f ,-c/fo)ghw6yv.a +-z5favd of the material?

  98.04: As sound travels from steel i1o6j7f/a liu y9gtau80d2:2usqxyfn nto air, both its speed and its:

  00.01: As a wave moves from one medium to a second medium with a diffe y7mkx 3mt9b2qrent index of re97k m3qytb2mxfraction which of the following wave properties would NEVER change?

  05.47: A sound wave generated from a tuning fork of single frequency travels fr 9h** mwdxtz4vc:p4l uom air (with speed of sound 340 m/s) into rock (with speed of sound 1500 m/s). Which stateupd9tm4h **4wzclxv :ment is true about the wavelength and frequency of the sound as it passes from air to rock?

  14.28: A waterproof ilhx3tf c r.08(z e-xtspeaker placed at the bottom of a swimming pool emits a sound wave that travels toward the surf8 t-lhzr(c. xft3ei x0ace 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 rectar 5zjp, a 6ai2g*ixcz3ngular glass block with an angle of ini6ziz* g ,a 3cx5prj2acidence 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 s5d hbycx 5c6f bb(80hshown to the (h8bh b5f0ycb5sc6 d x right. Which segment best represents the refracted ray?

  98.17: Which diagram best represents what happens to a ray of lighc hv(4abluzrf -p 77o-ze+us1t entering air from water? Air is at the top in all d-u r4 u(z7a+-ozeblvcs h1p7 fiagrams.

  94.11: The critical angle of a materiaa rfn4p44 qkbgpe 0:+h4u 1meil is the angle of incidence for which the angle of refraction is:pum:14gf 4+4ra4eb hkpei 0nq

  95.12: The principle underlying cccp( up31 6fnfiber optics is:

  98.36: The critical angle in a transparent substance surrou7nqfgtw),x ,gzi b /m8nded 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 m /ibbnhhyu hf0kao4tq- no,hg2*,t1 8 aterial X with an index of refraction of n = 1.5 to material Y witt 0h toh-,14q*a,y/b hgi bnuon8f2khh 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 t3 8 mrlv.mrxrx rt(0.a piece of glass by observing the critical angle of the light in each material. Glass with an inrr0v83 mxt.lmrr(.txdex 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 qhj-*c, 3fae .gqa6frclear material. When the light makes an angle of incidence equa hge. qjf6-qr,c*faa 3l 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 n1b h,ld1adj5-xhct m(. The laser beam emerges from the material and hits a target. See the accompanying figure for the position ph(1 xadcdbtlh15m - j,arameters of the laser and target. The value of n is:

  95.31: A beam of light passes from mw xr atoz:t)* fc6d*6eedium 1 to medium 2 to medium 3 as shown in the at wf*6z:x aotcde)r* 6ccompanying figure. What is true about the respective indices of refraction (n1, n2, and n3)?

  00.14: A beam of light paspo ;h35 exmt (t+-susyses from medium 1 to medium 2 to medium 3 as shown in the di;5usx - mpths 3(toey+agram. What may be concluded about the three indexes of refraction, n1, n2 and n3?

  97.24: The accompanying diagram shows the path tha b*qq)1s3 d,brutun u3t a light ray takes passing through three transparent materials. The indices of refraction in materials 1, 2, and 3 are n1, qru)1sbdtu3b *,unq3 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 taken by a monochr6nt0 eu-:*szd lq 1ffsomatic light ray traveling through three media.The symbo*fs 1lds6e nu:q zf0-tls $v_1$,$\lambda_1$ , 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 travelingb)3ysutfzbagu28 b) (hj/g/c 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 surface of0tbvu lbn45el.6.wcd a rectangular block of glast0ucd vnl e4 .bb.lw56s 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 wavelenm2 dr p6t,*hwygth 600nm is transmitted from air into a piece of glass. Which one of the labeled arrows best indicates the path of the light ray afte2* ,y dtwmhrp6r it enters the glass?

  14.44: A ray of monochromatic light enters the right-triangular glass as shx i3 izah-.g6+hlh dy1own. The glass has an index of refraction of 2.00 and it is surrounded by air. Which one of the lettered rays shows the pa361+d.hgl- ai hzixhy th of the light after it exits the glass?