IV. Problem Solving. Show your complete solution. 1. A material has an index of refraction of 1.5. What is the speed of light in the material?
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- A laser beam shines along the surface of a block of transparent material. (See the figure ( Figure 1).) Half of the beam goes straight to a detector, while the other half travels through the block and then hits the detector. The time delay between the arrival of the two light beams at the detector is 6.40 ns. Figure n = ? -2.50 m Detector 1 of 1 Part A What is the index of refraction of this material? n = IV]| ΑΣΦ Submit Provide Feedback Request Answer ?Explain how the following things work. (I.e., What is the source of light and how does it get to your eyes?) a. You are seeing a pencil in front of you. b. You are seeing the homework through your computer monitor.6. A sheet of glass has an index of refraction nalass = 1.45. Assume that the index of refraction for air is na= 1.00, Light is incident on the sheet of glass at an angle of incidence of 60°, as shown in the figure below. a. Calculate and label the size of each angle (in degrees) on the figure, including angles of incidence and refraction at each of the two parallel surfaces shown. 60 degrees Air na = 1.00 Glass " = 1.45 Air ng = 1.00 b. Calculate the velocity of the light as it travels in the glass.
- E. Light is incident from air (n = 1.0003) on the rectangular piece of glass shown below. 60° 30° 55° 35° 1. Determine the index of refraction of the glass Determine the speed of light in the glass shown1.What is the direction of the beam of light as it passes through the glass? answer in degrees from the normal to the glass surfaces 2.How much time does it take for a section of the beam to pass through the pane?1. A light ray is incident on a glass prism with refractive index 1.5 and apex angleA= 30° as shown below. Draw the path of the light ray until it emerges from the prism. A
- Problem 2: What is the smallest angle 1 for which a laser beam will undergo total internal reflection on the hypotenuse of the glass prism in figure? a. Draw the refracted and reflected rays inside the glass prism, and the refracted ray as it exits the prism. b. Clearly mark all angles. Show all your calculations here. Ꮎ 30° 60%Describe the working principles of fiber optics. How does total internal reflection play a crucial role in transmitting light through optical fibers?Consider a light ray that transitions from a material with a higher index of refraction to a material with a lower index of refraction. a. Does this ray speed up or slow down? b. Does it bend toward the normal line or away from the normal line? (i.e. is 0, > 02 or 8, > 0,?)