Report 9-1

Draw and label diagrams showing how the following photos were taken: 1 3 2 4

Refer to the photo below. a. What happened to the white light when it reflected out in the air? Why the light reflected out in such manner when it is white?b. How did the white light reflect out that way?c.  What do you call this kind of phenomenon?

Please help

Glass is semi circular. I am shining the light through the curved side and then measuring the refraction when it leaves the glass block at the flat side. a.) solve the index of refraction of the glass using table 2 (through the curved side).  b.) find the critical angle c.) find the velocity of light inside the glass

there can be more than one answer

2. Refer to the figure given below and answer the following: Write your solutions in the space provided a. Calculate the index of refraction of the unknown material. b. What is the speed of light within the unknown material? 42.0° 7 water unknown material 30.0°

b. Diffuse reflection Reflected angles are equal to incident angles d. Reflected angles are unequal to incident angles Normal to boundary Incident 38. Use the diagram to the right. If the speed of the light ray ray increases as it crosses the boundary, then the path of the ray in the new medium will be most likely toward which point? Boundary Boundary b. X d. Z Normal to boundary

Help physics HW Using Excel create a plot graph of reflected angle (y-axis) vs. incident angle (x-axis).

Normal line Li= P S Z Ls Normal line B Le = 30° ● - Dot represents a pin Q Step 9 C Step 10 Calculations: 1. Using Snell's Law of Refraction calculate the index of refraction for the piece of glass from the experiment. 2. Calculate the speed of light inside the glass. 3. Use your index of refraction to find the angle of refraction that would be produced if light entered your glass at an angle of incidence of 60 degrees. Show all work.

How would you find the index of refraction of the glass?

5. A ray of light leaves a reflective surface at 55 to the surface. Draw a ray diagram showing the incident ray, reflected ray and surface normal. Calculate the angles of incidence and reflection and fill them in on your diagram. 6. In the diagram, a ray of light strikes the interface between two media. Draw what the refracted ray would look like if: normal (a) medium 1 had a higher refractive index than medium 2. (b) medium 1 had a lower refractive Medium 11 index than medium 2. Medium 2

Refer to the photo below. a. What happened to the white light when it reflected out in the air? Why the light reflected out in such manner when it is white?

How to solve this question

2) A ray of light is incident to a plane surface separating two sheets of glass. The sheets of glass have refractive indexes of 1.70 in sheet 1 and 1.58 in sheet 2. The angle of incidence is 62°. The light starts in the glass with the higher index. a) What should you see the glass do when it travels from one more dense glass to the less dense glass? EXPLAIN Write the equation that you will use to solve what you explained in part a Solve the equation b) Did your answer match what you explained in part a? Yes No

QUESTION 8 A light beam in air hits a surface of swimming pool at an angle of 30 degrees (nair = 1.0003, "water = 1.333). a. At what angle is it refracted? b. If the light leaves the water and enters air, calculate the critical angle for the water. c. Calculate reflectivity of water.

Problem An extended light source can be modeled as a group of several point-like light sources. The figure below shows a linear light source (such as fluorescent lamp) modeled by three point-light sources, a sheet of black paper, and a screen. Light source Side view Paper Screen A. Copy the sketch in your notebook. Determine the regions of shadow and semi-shadow on the screen by drawing rays from the three point-like light sources. B. Qualitatively compare the relative brightness (and darkness) of the regions.

choose the correct answer in the parenthesis   1. Light is an electromagnetic radiation that travels in a straight line at a speed of (3.0 x 108 m/sec, 3.0 x 107 m/sec). 2. It is the type of reflection wherein light hits a smooth surface then light is reflected back in a regular pattern. This reflection is called (specular, diffuse) reflection.3. The law of reflection states that the angle of incidence is (greater than, equal to) the angle of reflection.4. (Reflection, Refraction) is the bending of light as it passes from one medium to another of different optical density.

Problem 3 How much light is reflected at the interface of air-crown glass (ng=1.523) and how much light is transmitted through the glass block? Draw the diagram to show the light path. What is given? What is asked? Formula(s) to be used Solution 15

How does the angle the light is incident on the surface compare to the angle that it is being reflected? Does this work for different angles? Please explain in at least two complete sentences. 7. Do your observations compare the Law of Reflection? Please explain in at least two complete sentences.

1. 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 0₁ > 0₂ or 0₂ > 0₁?) 2. Do you get total internal reflection when the index of refraction for the second material is larger than the index of refraction for the first material or when it is smaller? (i.e. Do you need n₂>n₁ or n₂ < n₁?)

Learning Goal: To learn and practice the geometry skills necessary for complex reflection setups. The law of reflection has the very simple form - Oreflected, Oincident - where incident is the angle between the normal and the incident ray and reflected is the angle between the normal and the reflected ray. Although the law itself is easy to use, many realistic situations involve successive reflections from multiple surfaces. The law of reflection does not become any more complicated in such cases, but the geometry of the rays does become complicated. Consider the case of light shining onto a mirror, which is attached to another mirror at some angle a, as shown in the figure (Figure 1). In this problem, we will find the angle at which light leaves the arrangement of two mirrors. Part A If the light strikes the first mirror at an angle 01, what is the reflected angle 02? Express your answer in terms of 0₁. VTI ΑΣΦ 0₂ = Submit Request Answer ?

Light of wavelength 589x10°m is incident on crown class. Which equation would you use to calculate the frequency of that light? What is the frequency of the light that is incident on the crown glass? Which equation would you use to determine the velocity of light in the crown glass? Calculate the velocity of the light in the crown glass. Refer the to formula sheet for the index of refraction.

Q1/ Group of rays stared from point (O) in a layer with velocity (2500) m/sec, then hit a contact (interface) of another layers with velocity (3500) m/sec. find: 1-Calculate the values of refraction angles in second media if the incidence angles are: 5, 10, 15, 20, 25, 30, 35, 40, 45 2-Draw the incidence and refraction rays.

Normal 2. The ray (R) of monochromatic light represented in the diagram to the right is incident on a glass surface. Which letter represents the correct refracted ray? a. W Air Glass b. X C. Y d. Z Diamond

Physics help

Properties of light 2. Light traveling in air is incident on the surface of a block of plastic at an angle of 62.7° to the normal and is bent so that it makes a 48.1° angle with the normal in the plastic. Find the speed of light in the plastic.

Solve the following problems completely. Draw and label appropriate diagrams. A beam of light in air is incident at an angle of 35 degrees to the surface of a rectangular block of clear plastic (n = 1.5). The light beam first passes through the block and reemerges from the opposite side into air at what angle to the normal to that surface?

Mystery Material Material 1 Light passes from Material 1 into a new, Mystery Material. The angle of incidence of the light on the interface between Material 1 and the Mystery Material is 0, n, in mystery 45°. %3D a) Draw 0, in the diagram to the right. b) Draw the refracted ray and angle of the light if Mystery Material has a lower index of refraction compared to Material 1 Mystery Material Material 1. n, mystery Nmystery n1 Note: no numbers are necessary, just the general path and shape of the ray and angle.