11.24: Two wave pulses travel to the right toward a rigid boundary as s,(d:xbabu 7mw hown. 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 indiv (ba:b mdw7x,uidual pulses coincide?

  08.30: A light beam passes throuklgs ,qh6+g8 8(vof sigh the air and strikes the surface of a plastic block. Which pair of statements correctly describes the phase g k8l vfq+s(ih8ogs6 ,changes for the reflected wave and the transmitted wave?

  12.02: A ray of light passes straight downward t9 4e g6si7ihehhrough the point labeled B in the diagram shown. The ray reaches a h7sih49e i6g eflat 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 reflectiyaqzhl5l8cb*rab xs*: f+9x 7on occurs whenever light is incident on

  05.18: A student hold a hand mirror to observe the back of her head while stan9*5lysy*k1 ksc zg2 tde:,kd fding in front of and looking into a wall mirror. If she is standing 4 ft in front of the wall mirrsgdkzl:5*1,kt* 2d s ec 9ykfyor 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 ray changes directg8; sjd a/t3iyion when it enters a new material. W 8dg/jst; 3aiyhich one of the following choices is the term best associated with this phenomenon?

  96.19: Light that has wavelength of 500 nm in air 6m +l ubjw*,bxlts2a2 a*eep hb+x 3(dhas wavelength 400 nm in a transparent material. What is the index of refraction of thepwltba+h,2eb 6mljsb2x (u*ead x+*3 material?

  98.04: As sound travels from (hhli 2k6v 86ljhtd, asteel into air, both its speed and its:

  00.01: As a wave moves from one medium to a second medium with a 8oaq ey 8rt3vd6hm-5 5i*grfb different index of refraction which 8gd53qm5*yrbhi-v 6 t 8faeorof the following wave properties would NEVER change?

  05.47: A sound wave generated from a tuning fork of single frequency travels ctml 5 -t 2gonit,q g3hmf2i:.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 ani25hf m gom-.2tql:c,g int3td frequency of the sound as it passes from air to rock?

  14.28: A waterproof speaker*p8*wak ltx +h placed at the bottom of a swimming pool emits a sound wave that travels toward the surface of 8t+h* la k*pwxthe 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 o5 aanc+eb.clmj304)bwr jg-g3evq- a rectangular glass block with an angle of incidenceewlnjo cg-5gqaabm0-4 3j.bvc +3 r)e 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 diri)jb2di dh9h5 ected toward a point P on a boundary as shown to the right. Which segment best redi d hh95b)2ijpresents the refracted ray?

  98.17: Which diagram best reprn( s54; jzsofow b81cva+bj 8pesents what happens to a ray of light entering air from water? Air is at the top iov + jnj;zpscf(b5ao14s88 wbn all diagrams.

  94.11: The critical angle of am ,c4-xyw kd7;j zv*iz material is the angle of incidence for which the angle of refzi d4cj zmk*w v,7y;-xraction is:

  95.12: The principle underv92u hz).(y l:tukji plying fiber optics is:

  98.36: The critical angle in a transparent substance surrounded by air 7 +l5cqjk0m lau6kr y,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 X with an index of ref0ecmy)gdc7 5 8 al.1zj b*vbauraction of n = 1.5 to material Y with an index of refraction of n = 2.0. If the spezm b85)adl. u0 *gvy7bccje1aed of light in material Y is v, what is the speed of light in material X?

  03.15: A jeweler can distp t*j0 rg5fdxobyb8 :.c4a j:uinguish between a diamond and a piece of glass by observing the critical angle 8cj d5yrfu:bp.xa j 0 b:go*4tof the light in each 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 intoj6n5qimb u(fr()z+jl a clear material. When the light makes an anglerui+q( b)jjfl nz56 m( of 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 embedded i1;jd7ogmf x45xxu) d8w iq 4whn a material of index of refraction n. The laser bea w;d m jdwq 71fxhgx4u5)x8o4im emerges 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 medin+2ip33 qynp yum 1 to medium 2 to medium 3 as shown in the accompanying figure. Whapynp32yiq + 3nt is true about the respective indices of refraction (n1, n2, and n3)?

  00.14: A beam of light passes from mediu ht/ )fja6vvk1m 1 to medium 2 to medium 3 as shown in the diagram. What may be concluded about the three indexes of refraction, n1, n2 and1v h6ktjfv )a/ n3?

  97.24: The accompanying diagram shows the path that a light ct xgqqlt626:m5w wc5qhf* 6wray takes passing through three transparent materials. The indices of refraction in materials 2 6q56f6 *mgxqw5wwc:ttclhq1, 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 path taken by a monochromatic light ray tgpu4e6*w0 4y/r8l dt bht9lbr raveling through three mediaw ll4yb0/h69 rt*get pdb4ur8.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 t-c28aancxde l2s: vj .raveling 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 of a rectangula *v-lr08/jxu8tmoxa rcf:rdd;n-b 2cr block of glass at an-ancrrxjl b x8 0dvd r*o8c:2mt-u/f; 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 intom- 4y.vztcu 0)1 hxmqo a piece of glass. Which one of the labeled arrows best indicates the path of the light ray after it enters the z-)v 4umom1hcy0.txq glass?

  14.44: A ray of monochromatic light enters the right-triangular glass as shown. --p0tcv jp 6dqThe glass has an index of refraction of 2.00 and it is surrounded by air. Which one of the lv-t 6djp 0pq-cettered rays shows the path of the light after it exits the glass?