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Lansing Community College *

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Physics

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Oct 30, 2023

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Uploaded by SuperHumanPowerGoat18

g Date Namé h » ! coNCEPTUAL ySIC PRACTICE PAGE a napter 28 Reflection and Refraction \ Refracfion 1.AP i Fini Positions of the wheels insi rections of travel. other side. Clearly indicate their paths and dj 2. Red, green, and blue rays of light are incident u pon a glass prism as shown below. The average speed of red light in the glass is less than in air, so the red ray is refracted. When it emerges into the air it regains its original speed and travels in the direction shown. Green light takes longer to get through the glass. Because of its slower speed it is refracted as shown. Blue light travels even slower in glass. Complete the diagram by estimating the path of the blue ray. 3. Below we consider a prism-shaped hole in a piece of glass—that is, an “air prism.” Complete the diagram, showing likely paths of the beams of red, green, and blue light as they pass through this “prism” and then into glass. RED GREEN BLUE 2 121

———7 CONCEPTUAL IlySI" PRAL bt ¢+ °~ Chapter 28 Reflection and Refraction Refraction—-continue when emerging from @ prism. Newton showed that wit, ith a llel again. Which placement of the SE:nu ng . Lig prism he co prism will do this? pearfisher sees the fish closer to the water Surfaceg 5. The sketch shows that dué to refraction Huey S than it actually is. a. Draw a ray beg at 50° to the normal @ ine of sight of the fish when it looks " Warg inning at the fish's eye to show the liné Of . Draw the direction of the ray after it meets the syr ace t the water surfac of water and continues in the air- b. At the 50° angle, does the fish see Huey OF does it see the reflected view of the starfish at th pottom of the pond? Explain. : ! e o refieced yigW of TRE - offiw JQ' 15 ek i3l pderh el Zefletan The £ish sess Th e Firicel - ohye of n the 50° path? Vel 15 1557k [ : : 05 ©5SThen YX™ Wil i e he ¢. To see Huey, shoulc_! the fi B yhr SO g ne ot Syt e it would see the world above in a 180° bove as seen beneath the water, wa}yeri the fish sees a normally ’1 80° re barely above the water surface, horizon. The fisheye view of the world @ fferent. Due to the 48° critical angle of mpressed within an angle of d. If the fish's eyes wel view, horizon to however, is very di horizon-to-horizon view €O

Namé s Date chapter 28 Reflection and Refraction More Refraction 1. The sketch to the right shows a light ray moving "from air to water at 45° to the normal. Which of the three rays indicated v:nth capital letters is most likely the light ray that continues inside the water? C 2. The sketch on the left shows a light ray moving from glass to air at 30° to the normal. Which of the three rays is most likely the light ray that continues in the air? | : 40 light | ‘) 3. To the right, a light ray is shown moving from air : to a glass block at 40° to the normal. Which of the three rays is most likely the light ray that travels in the air after emerging from the opposite side of the block? N 15 Sketch the path the light would take inside the glass. ABC 4.To the left, a light ray is shown moving from water to a rectangular block of air (inside a thin-walled plastic box) at 40° to the normal. Which of the three rays is most likely the light ray that continues into the water on the opposite side of the block? § Sketch the path the light would take inside the air. Q& ABC thanx to Clarence Bakken fi_{‘;"’f ; /

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