11.24: Two wave puls *a-+.ggaqsvvo+e7m1 xst lx9 es travel to the right toward a rigid boundary as shown. After reflection of7.xtmv-eg ov9ax+sa+q * 1sgl 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 coincide?

  08.30: A light beam passes through the air and strikes the rjm1n o9y+u9wx q;pyz 5kx ,1xsurface of a plastic block. Which pair of statements correy9jx wpoxqy+ukn, z r91m;x5 1ctly describes the phase changes for the reflected wave and the transmitted wave?

  12.02: A ray of light passes straight downward through the point labeled d,p4rsy7hjb9j wi 1 p 4zt5yqr+bg2.if wp2g.B in the diagram showy2btw,q2.g pp r1y +4 bj5hzd49gijrifp w.s7n. The ray reaches 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 when ,lxnk l/)q1avp2qh(+ ueyb, )vc*dgoever light is incident on

  05.18: A student hold a hand mirror to observe the bou,g2oz g.) cwh t*q 5jtpp*o/ack of her head while standing in front of and looking into a wall mirroru)otpowoh/,jg. 5 *pt*2q cgz. 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 wall mirror?

  14.25: It is observed that a light ragi uof3flpv j -.a-)ujdghn7k9/8 jz:gmr0v (y changes direction when it enters a new material. Which one of the following choices is the term best associated with thi.vf:dpuo ia0 nj j g9-kg)jhfvz- (38rugl/ 7ms phenomenon?

  96.19: Light that has wavelen)m *fowg;u2cv ,3c*ds0ndx wrgth of 500 nm in air has wavelength 400 nm in a transparent material. What is t ;03vwf w*ndcu ,x*)sg2dcmro he index of refraction of the material?

  98.04: As sound travels from steel into vd.vr1 rrwpgf*.)h4v) t 6r tlair, both its speed and its:

  00.01: As a wave moves from one medium to a second medium wino4+zdn . n)dtth a different index of refraction 4d n.)td+z onn which of the following wave properties would NEVER change?

  05.47: A sound wave generated from a tuning fork of single frequency traveldqhw:+g d8:lz pu7m *vs from air (with speed of soundl v*qpdm7g w8z ::u+hd 340 m/s) into rock (with speed of sound 1500 m/s). Which statement is true about the wavelength and frequency of the sound as it passes from air to rock?

  14.28: A waterproof speaky3o cqk 2qr4x,*v 6euqa ym131jlsdrt 5et: +cer placed at the bottom of a swimming pool emits a sound wave that travels toward the surface of the water. In the water, the sr cejv m etyq,co3lk15ud6qs x3q+ 4*tyr12a: ound 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 glsoy4z ibr:k )6p; elmx5ob+*wass block with an angle of incidence of ekoy5xbiz* 6+ )msro:;l4wbp $0^0$. 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 t:at 9:vcbtttwamd,g b64u*x3he right. Which segment best represenwg:abuxt b *4m 6tv9ta:,c d3tts the refracted ray?

  98.17: Which diagram best represents what happens to :05r5*u.gz * jay oky wl1jvz mn,n,ps4w,leqa ray of light entering air from watek4 0 .awjy l:,jwplz1mrevgqs*z, 5uo *5 ,nnyr? Air is at the top in all diagrams.

  94.11: The critical angle of a ma( fylx0d0 sgl7terial is the angle of incidence for which the angle of refraction isgy lls7x0fd0( :

  95.12: The principle underlying fjp0z1kyk u) zes021qk iber optics is:

  98.36: The critical angle in a transparent -0 vv1y sdfw:/pk7t9ew bgr :wsubstance 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 0gk m0e1moah62 d so4cX with an index of refraction of n = 1.5 to material Y with an index of refraction of n = 2 ecm061okshod0 g 2ma4.0. 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 by obkb hwy, y1rx01serving the critical angle of the light in each material. Glass with an index of refrarkyx,wh0 y11bction 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 the light makes ax2 a;h i2k.tb6*:o5. mwru 5 owoqkyvvn angle 6 ;a5 .kok: xo2hwvy*ubmo 2r 5qv.wtiof 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 empa-euwxcha(8 ap 7**lunea, -bedded in a material of index of refraction n. The laser beam e7u- ,8aa n*x*ewupa ch el(p-amerges from the material and hits a target. See the accompanying figure for the 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 8)/.bi bz;m kqr2tdu jto medium 3 as shown in the accompanying figure. What is true about the respective indices of refrjb tk2.rz /d8um iq;b)action (n1, n2, and n3)?

  00.14: A beam of light passes from medium 1 to medium 2 to medium 3 all ndya;tzb;u0yz- cnknn* (k :++sh7s shown in the diagram. What may be co0b+c *nnzhls ;kn;(ydatlu: zn 7k+y-ncluded about the three indexes of refraction, n1, n2 and n3?

  97.24: The accompanying diagram shows 4a6k8k v7kjhjj8tk4ahte4 2p/qw)rlthe 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 bjt8eqt 4khwkpkj 4 )akvjhal4 76r2 /8est describes the relation between the indices of refraction?

  09.34: The diagram below shows the path taken gb-nz.dc dk0-hq7 /)lg jpxk*by a monochromatic light ray traveling-h-/z lj dkxqdn.k * gpc0)7gb 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 travph0ad94 fv+s yeling 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 2,lc si frz0z.hepmi*8s +i b7surface of a rectangular block of glass amf2 . *bz0e78 irl +,csihzispt 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 if5x,duipl ea5:9-zh7r5 waht nto a piece of glass. Which one of the labeled arrows best indicates the path opil5aaue w5 : r,5df7xh-9 thzf the light ray after it enters the glass?

  14.44: A ray of monochromatic light entyk)ih3g4k r; 2lekc3ners 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 aftk he;r kk3gny)lci24 3er it exits the glass?