11.24: Two wave pulses travel to the right toward c// tbj g0fym6c.w5y(0 auwtra rigid boundary as shown. After reflection of the triangular pulse, the pulses will interfere. Which 0 aw(w5fut/ y.6 cmbrcyj/0gtone 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 air and68kaxkz j0l 74+lc pcdc 32cxg strikes the surface of a plastic bp d4 3cccck 6j+x kgax0l827lzlock. 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 2z ft2,(t );vph uwnempoint labeled B in the diagram shown. The ray reaches a flat mirror placed at anefphzm)2v2wut n (t; , 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 in+o xa ;r4zobm64jmo(qcident on

  05.18: A student hold a hand mirror to observe*jbxj v-g x2k* 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 wikj- x*j* bxv2gll see the back of her head how far behind the wall mirror?

  14.25: It is observed that a light ray changes direction whenxhpm+ /6dta k4 it enters a new material. Which one of the following choices is the term best associated with this ppm 46hx/dt+ka henomenon?

  96.19: Light that has wavelength of 500 nm in air has wavelength 400 nm ir810km) ri,2 sqsmnawn a transparent material. What is the index of refraction of the mater1,rirmswq2ns)a08k m ial?

  98.04: As sound travels from steel into ai u+r4uwxk-wj +r, both its speed and its:

  00.01: As a wave moves from one medium to a sec 2ek.dg.yd:/ bu5h sfcond medium with a different index of refraction which of5kb 2. e:y/c gd.dhsfu the following wave properties would NEVER change?

  05.47: A sound wave generated fromhmc5q)y 6lxvg .zr00o 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 thvxz05y.hm6qg)co r 0le wavelength and frequency of the sound as it passes from air to rock?

  14.28: A waterproof speaker placed at the bottjcef 9.yck/ 0rom of a swimming pool emits a sound wave that travcj90 f.cyk /reels 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 otv:0/.aqd ot if white light strikes a rectangular glass block with an angle of incidence qt. ta/i :vod0of $0^0$. 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 shown2xcv:12w;p5gb dqr,vam ah / n to the right. Which segment best represents the refrmvbh25ad2 w qpr/: cvg; an1x,acted ray?

  98.17: Which diagram best rellm6 1sjlzgv 3j+2mm4 iw v02zpresents what happens to a ray of light entering air from w + zg ilw1v4 l3m26mj2v0smljzater? Air is at the top in all diagrams.

  94.11: The critical angle of a matb26a;f yy 3juterial is the angle of incidence for which the angle of refra yja;u3f26 ybtction is:

  95.12: The principle underlying fiber opti/syzr9i 5ldh8(6eu /z xhvf q2cs is:

  98.36: The critical angle in a transparent substance surrounde1v3qa , gg46*cnpv qcqd 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 materi0ar v9vm0xo i wfv9e-n1 nx36val X with an index of refraction of n = 1.5 to material Y with an index of refraction of n vvi1n306 mevw09x -v9nfx ora= 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 a piece of glass byw dji 0 jo065z*jl:ily observing the critical angle of the light in each j5 yld0wj izoji:*60l 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 material. When thx w:j1t7gb;1 ;izq-fb 2 bug)jo/edhxe light makes an angle of incidence equaljq z x2jo) gb:et7/u x wbb1dhif1g;-; 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 emkifxa */9 ; ce4cfsd.rbedded 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 a.dcsf cfei/r9*4k ;x target. The value of n is:

  95.31: A beam of light passes fromtgp;(+ kt et9f medium 1 to medium 2 to medium 3 as shown in the accompanying figure. What is true about the respective indices of refraction (n1, n2, and+(tt9pgt fe;k n3)?

  00.14: A beam of light passes fr0a +q menc+upfzu g5n2gru75+ om medium 1 to medium 2 to medium 3 as shown in the diagram. Whar+ uc gmpeg5n7af u+z2nu5+ q0t may be concluded about the three indexes of refraction, n1, n2 and n3?

  97.24: The accompanying diagram shows the path that a light ray takes passing tqcf 6 ,xbj/1p z3:fyxnhrough three transparent materials. The indices of refraction inzj/bxc3: 6xqn1f fp,y materials 1, 2, and 3 are n1, n2, and n3, respectively. Which of the following best describes the relation between the indices of refraction?

  09.34: The diagram below shohjhkag o*1kg1/ w+2wpws the path taken by a monochromatic light ray travep2akjwhk/ gg1h+* w1 oling through 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 glq h4 wvjy40/g/p l,b.vqxhv 2d*x sru4)gvcy -ass ($n_g$=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 rectangular block of glacp,b sb.w nubf,bf/4ov w/vxp8)g5 5v ssvg5f,wp8/ )fp5u bbbcvs, vb o4 .nx/w 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 n1qcuhrt(8( frcr;, htransmitted from air into a piece of glass. Which one of the labeled arrows best indicates the path of the light rr1,cr( t fc 8un(h;qhray after it enters the glass?

  14.44: A ray of monochromatic light enters the x( +d(-6x8luzx0z erak54u 6qlxjmhiright-triangular glass as shown. The glass has an index of r4 l u(8+6rid zmx kx6(xlaxzu hej50q-efraction of 2.00 and it is surrounded by air. Which one of the lettered rays shows the path of the light after it exits the glass?