lab_worksheet-1

The image above is a standard chest X-ray. i) Describe two mechanisms by which X-rays interact with the materials in the body. ii) Explain why there is a difference in appearance between the image at A and the image at B. With references

Total Internal Reflection Conceptual Question Consider scenarios A to F in which a ray of light traveling in material 1 is incident onto the interface with material 2. (Figure 1) Figure N₁ 12 ▾ Part A Submit Part B Complete previous part(s) A B Provide Feedback C D E F For which of these scenarios is total internal reflection possible? List all correct answers in alphabetical order. For example, if scenarios A and E are correct, enter AE ▸ View Available Hint(s) Material 1 (1₁) air (1.00) water (1.33) Pearson diamond (2.42) air (1.00) benzene (1.50) diamond (2.42) Material 2 (1₂) water (1.33) air (1.00) air (1.00) quartz (1.46) water (1.33) water (1.33)

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.

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.

Problem #4 The luminous flux on a table is 400 Lumens. The dimensions of the table are 100cm by 200cm.

1. Refractive Material The following are top-view diagrams of solid cylinders and cubes. Assume that light travels more slowly through the objects than through the surrounding medium. Each diagram shows a path for light that is not qualitatively correct; there is at least one flaw, perhaps more, in each diagram. Identify all flaws. Explain your reasoning. a. b. d.

INSTRUCTIONS Activity 1: Plane Mirror (Flat mirror) Leok at the photographs of the white light beanms and the color ight beams reflecting off the planar (at) mirrer. Answer the questlons in complete sentences. Questions Does the planar miror have a focal point? Explain your answer. Did the planar mirror cause left-right reversal of the light beams? Explain your answer. Did the planar mirror cause the rays of light to divérge, converge, or remain parallel? Explain your answer. Explain the order of the colors of light on the screen (from left to right) and compare them to the order of the colors coming from the light source.

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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.

Question 9 Not yet answered Marked out of 1 P Flag question Floor reflectance has little importance for most tasks performed on surfaces such as a desktop at a height of about . above the floor. ............ 70cm 7lcm O 72cm 73cm None of the mentioned

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.

View image, and provide the correct answer. Thank you I greatly appreciate it

A friend of yours (who has not had the benefit of an astronomy course) tells you about a report he has read in a tabloid newspaper. He claims that on the dark side of the Moon (the side that never receives any sunlight), there is a secret base of aliens who cannot stand light and send UFO's to Earth under the cover of darkness. What is the scientific error in this story? Group of answer choices   All sides of the Moon are illuminated by sunlight in the course of a month; there is no dark side.   While we have some credible reports of UFO landings, it is difficult to imagine that advanced aliens would be afraid of the light.   The dark side of the Moon is the one that faces the Earth and our telescopes would have spotted such a base.   This seems to be a perfectly reasonable story.   The space program of the world's countries has landed thousands of spacecraft on the dark side of the Moon.   Since the moon is turning, we see all sides of it from Earth in the course of a…

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

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?

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

Paragraph Styles • Light is essential in the process of photosynthesis by plants. • Light is also how reception and transmission of information about the things around us become possible. WHAT'S NEW Activity 1. Pinpoint Me? Directions: Identify the words described by the statements below and write your answer on the space before each number. 1. The law which states that the angle of incidence is equal to the angle of reflection. 2. The term used to describe the scattered reflection of light. 3. The center of the sphere to which the mirror is a part. 4. The center of the mirror and the lens. 5. The point of convergence of all light rays passing through a mirror and lens. 6. The distance from the vertex to the principal focus. 7. The other term for a diverging lens.

IP A small vertical mirror hangs on the wall, 1.25 m above the floor. Sunlight strikes the mirror, and the reflected beam forms a spot on the floor 2.55 m from the wall. Later in the day, you notice that the spot has moved to a point 3.55 m from the wall. Part A Were your two observations made in the morning or in the afternoon? in the morning in the afternoon Submit Part B Complete previous part(s) Part C Request Answer What was the change in the Sun's angle of elevation between your two observations? Δθ = Submit Π ΑΣΦ Request Answer ?

Please answer A,B and C and show work on paper and circle answer

6 - please provide the correct answer, thanks!

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solve and explain each step for this

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Draw a sample diagram of a light ray incident from air and refracted by a glass. Draw an incident, reflected and refracted rays. Label the angle of incident, angle of reflection, and angle of refraction. State the Law of Reflection and Snell’s Law of Refraction. Give the equations for each law.