When a room has mirrors on two opposite walls, an infinite series of reflections can be seen. Discuss this phenomenon in terms of images. Why do the distant images appear fainter?
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When a room has mirrors on two opposite walls, an infinite series of reflections can be seen. Discuss this phenomenon in terms of images. Why do the distant images appear fainter?
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- Two coherent EM waves have amplitudes of E0 and 0.770 E0. What is the resulting amplitude when they interfere destructively?(A) Show a model as to how white light interacts with a t-shirt that appears to an observer as red and white striped in terms of light wave absoprtion and reflection. (B) Make a model of what will happen when white light is shined through a blue and green filter stacked on top of one another. It will appear black because white light is absorbed but show this in a skectch.A ray of light strikes a flat glass block at an incidence angle of 8₁ = 39.8°. The glass is 2.00 cm thick and has an index of refraction that equals n = 1.65. 2.00 cm (a) What is the angle of refraction, 82, that describes the light ray after it enters the glass from above? (Enter your answer in degrees to at least 2 decimal places.) (b) with what angle of incidence, 83, does the ray approach the interface at the bottom of the glass? (Enter your answer in degrees to at least 2 decimal places.) (c) with what angle of refraction, 084, does the ray emerge from the bottom of the glass? (Enter your answer in degrees to at least 1 decimal place.)
- 2. (6 points) A predatory Angler Fish has evolved bioluminescence, so that it can make its own light that it uses like a flashlight to help see its prey. A species of jellyfish lives in deep ocean water (so that the only light that reaches it is the light produced by the angler fish). The index of refraction of water is 1.333. The body of the jellyfish is mostly water surrounded by a "thin film" of transparent cells with an index of refraction ncells = 1.19. If the body of the jellyfish is 0.5 μm thick, what color of light should the fish produce to be able to see the jellyfish? water water cells 2(1.50) (0.5X105 m) = (m+11) ~Fiber optic cables, such as those used for high speed communication (Internet & phone services), transmit signals as light pulses through transparent cables. When viewed from one of the ends, you can see these light pulses, but when viewed from the side you can't. Why does this happen?It is a technology that allows information to be transmitted over great distances as light pulses via strands of glass or plastic fiber.
- What does the term Normal mean in the context of dealing with an optical surface Describe how light behaves in relation to the Normal when travelling between two interfaces in the following cases: From a less dense to a denser mediumLight bends on entering glass from air because its ……...is less in the glass.The index of refraction for violet light in silica flint glass is ny=1.68, and that for red is ng= 1.55. What is the angular dispersion of visible light passing through a prism of apex angle A= 59°, when the angle of incidence is 430. ? State your answer to the nearest 0.001°
- Fiber optic cables, such as those used for high-speed communication (Internet & phone services), transmit signals as light pulses through transparent cables. When viewed from one of the ends, you can see these light pulses, but when viewed from the side you can't. Using your knowledge about reflection and refraction, explain how this might work. Is there some physical limitation where this might not work?If the light goes from medium 1 to medium 2 with no change in angles or intensity, then the light has passed from medium 1 to medium 2. None Reflection Absorption Diffraction emission via refractive Dispersion Scattering