11.24: Two wave pulses travel to the right toward a rigid boundaryq;;e8 esc uio4 as shown. After reflection of the triangular pulse, the pulses will interfere. Which one of the following pictures best represents the superposiuq eo;se;i c48tion of the pulses when the centers of the individual pulses coincide?

  08.30: A light beam passes through the air and strikes the surface of fcdw 7g4o y 3w)4p;yqea plastic block. Which pair of statements correctly describes the )4;7eowqgyyc wp4d f 3phase changes for the reflected wave and the transmitted wave?

  12.02: A ray of light passes straig9vp*4 d,x r -kenz(xcyht downward through the point labeled B in the diagram shown. The ray reachynekzxr ,4-x (v* dc9pes 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 reflectiog 5+zfnd6z 8j4xvh6.czi gr/a n occurs whenever light is incident on

  05.18: A student hold a*uxzrgv(-: qe hand mirror 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 her head (- *vqe uzr:gxhow far behind the wall mirror?

  14.25: It is observed that a light ray changes direction when it enteau.n+k dq/rlsyy2-5gf.a, y ers a new material. Which one of the following choices is the qursl/y f 5y,gy- dk.ae2.+anterm best associated with this phenomenon?

  96.19: Light that has wavelength of 500 nm in air has wavru+:1 zlbh ls/*pl q3welength 400 nm in a transparent material. What is the index of refract:1*+bql3phw lul/ rs zion of the material?

  98.04: As sound traves74j0hdgh 3z+ xawn t9ls from steel into air, both its speed and its:

  00.01: As a wave moves from ,w+f 0 om3ixme1b0lj aone medium to a second medium with a different index of refraction which of ie 0fa0bmjm3o w,lx1 +the following wave properties would NEVER change?

  05.47: A sound wave generated from:gtc08bsm1 -uigak1p5 ax m) l a tuning fork of single frequency travels from air (with speed of sound 340 m/s) in-5pm1gtxg1 ua ka08:l sbcm )ito 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 speaker placed at the bottom of a swkx 83g+nr:b ( /u-lgms 0vlf1nypgnn.imming pool emits a sound wave that travels toward the surface of the water. In the water, the sound wave has a frgx syk-fg 08.n+3pg(nlrvu:l 1mnbn /equency $f_{water}$, 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*g 8f vtme0((,g 8aetqatqgb* of white light strikes a rectangular glass block with an angle of incidence ot*m8v0 ata( qqgebe8,fg*(gtf $0^0$. 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 :hqwr9v;h gf: shown to the right. Which segment best represents the refgvqf; hw9r :h:racted ray?

  98.17: Which diagram best represents what d m9c523wlkk uhappens to a ray of light entering air from water? Air uw35dk 9mklc2is at the top in all diagrams.

  94.11: The critical angle of a material is the angle of incidence for whq7(h gvw96cc2 w2mm zaich the angle of refract6cq27mvwz29gcmah w( ion is:

  95.12: The principle undei+ x*o9)c fzcv vm.jj2rlying fiber optics is:

  98.36: The critical angle in a transparent substance surrounded by air is84cs: ln;owll $30^{\circ}$. The speed of light in
the substance (in multiples of $10^8$ m/s) is most nearly

  01.28: Light travels from t6 d;djf0f25t c1w alematerial X with an index of refraction of n = 1.5 to material Y with an index of refraction of n = 2.0. If the speed of ligd 5 f ;2wat1cjdeftl60ht in material Y is v, what is the speed of light in material X?

  03.15: A jeweler can distinguish between a diam 2tpk2aoc+c( eond and a piece of glass by observing the critical angle of the light in each cop(kaec2 +2tmaterial. 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 the light makes an ang:n * w)kb2.d4y ws uv7jw8z1tre dohi6le of incidenk *)71z: w j.d2h6no48 wrtswbu devyice 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 embedded in a material of index of refraction n9qplla 5ljw 7gi:-8bg37qbha . The laser beam emerges from the material and hits a target. See the accompanying figure for the position parameters of the laseg 7:3i7ba-wplhb ll85a qq9gjr and target. The value of n is:

  95.31: A beam of light passes from medium 1 to qx1al6n/ys x)medium 2 to medium 3 as shown in the accompanxs n/xl6aq )y1ying figure. What is true about the respective indices of refraction (n1, n2, and n3)?

  00.14: A beam of light passes from medium 1 to medium 2 to mediumj:psutsr6k; ; 3 as shown in the diagram. What may be concluded about the three indexes of refractionp;tkj s 6rs;:u, n1, n2 and n3?

  97.24: The accompanying .j*7+zv:/rlktwil,nxs n0hu x5 tx,u diagram shows the path that a light ray takes passing through three transparenx,ltu i,h zwunx/l+s :x75r v.t*n 0jkt 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?

  09.34: The diagram below shows the:d tr+nuc+t:xj r1/e p path taken by a monochromatic light ray traveling through t xtd1:/ jnpcr+:te+u rhree 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 glaq+xqh; yvw)5rj gl2(tj;l 05 lxydm ez:(vw(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 surfa2f+ 0;s- sodpsby1e 5vgg6j wwce of a rectangular block of glass g+syesof0b-2g ;dw516pwvs jat 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 av9b0 vj -r.gsair into a piece of glass. Which one of the label0bg-vsr aj9v. ed arrows best indicates the path of the light ray after it enters the glass?

  14.44: A ray of monochromati7m6 1q9qi fauoc light enters the right-triangular glass as shown. The glass has an in 9mqu67fao 1qidex of refraction 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?