Announcements
... • All electromagnetic waves travel through vacuum with a speed c (3 X 108 m/s) • The visible portion of the spectrum forms a tiny portion of the total EM spectrum • For all EM waves, c=λf (true for any type of wave); λ = c/f ...
... • All electromagnetic waves travel through vacuum with a speed c (3 X 108 m/s) • The visible portion of the spectrum forms a tiny portion of the total EM spectrum • For all EM waves, c=λf (true for any type of wave); λ = c/f ...
Chapter 1 - Liceo Crespi
... Light travels through an optical medium with a lower speed than c, as atoms in the medium absorb, reemit, and scatter the light. For example, the refractive index for diamond is n = 2.419, so the speed of ligth in diamond = c/n c 3.00 × 10 8 m/s ...
... Light travels through an optical medium with a lower speed than c, as atoms in the medium absorb, reemit, and scatter the light. For example, the refractive index for diamond is n = 2.419, so the speed of ligth in diamond = c/n c 3.00 × 10 8 m/s ...
Physics 422 - Spring 2015 - Assignment #5
... 3. (a) Calculate the distance to the object focal point, fo , and the image focal point fi for a single spherical concave refracting surface with radius of curvature R = −10 cm, made of a material with index of refraction n2 = 1.5, and with air (n1 = 1) on the object side. (b) Calculate fo and fi f ...
... 3. (a) Calculate the distance to the object focal point, fo , and the image focal point fi for a single spherical concave refracting surface with radius of curvature R = −10 cm, made of a material with index of refraction n2 = 1.5, and with air (n1 = 1) on the object side. (b) Calculate fo and fi f ...
refraction ppt_2010
... • The maximum possible angle of refraction is 90-degrees. • Total internal reflection (TIR) is the phenomenon which involves the reflection of all the incident light off the boundary. TIR only takes place when both of the following two conditions are met: 1. the light is in the more dense medium and ...
... • The maximum possible angle of refraction is 90-degrees. • Total internal reflection (TIR) is the phenomenon which involves the reflection of all the incident light off the boundary. TIR only takes place when both of the following two conditions are met: 1. the light is in the more dense medium and ...
Unit 7 Lab Review - Harrison High School
... 4. Draw what happens to the light rays when five beams of light (such as those from a ray box) hit a concave lens. ...
... 4. Draw what happens to the light rays when five beams of light (such as those from a ray box) hit a concave lens. ...
![tutorial #10 [wave nature of light] .quiz](http://s1.studyres.com/store/data/020410144_1-db052accb2aa8cded167524d89755606-300x300.png)
tutorial #10 [wave nature of light] .quiz
... 1) A beam of light is sent directly down onto a glass plate, ng = 1.5, and a plastic plate, np = 1.2, that form a thin wedge of air as shown in fig. 1. An observer looking down through the glass plate sees the fringe pattern shown in the lower part of the drawing, with the dark fringes at the ends A ...
... 1) A beam of light is sent directly down onto a glass plate, ng = 1.5, and a plastic plate, np = 1.2, that form a thin wedge of air as shown in fig. 1. An observer looking down through the glass plate sees the fringe pattern shown in the lower part of the drawing, with the dark fringes at the ends A ...
Waves Revision Booklet
... from one place to another. All electromagnetic waves can travel through a vacuum, and they all travel at the same speed in a vacuum - the speed of _____. The electromagnetic spectrum is a continuous range of _________. The types of radiation that occur in each part of the spectrum have different use ...
... from one place to another. All electromagnetic waves can travel through a vacuum, and they all travel at the same speed in a vacuum - the speed of _____. The electromagnetic spectrum is a continuous range of _________. The types of radiation that occur in each part of the spectrum have different use ...
ray_optics_su2014
... 2a. Total Reflection (Snell’s Window) • At the “critical angle” the refracted beam is at 90, so it can’t get out. • Greater than this “critical angle” there is 100% reflection • Snell’s Window: from underwater a fish sees the entire area above surface in a cone. Outside the cone light is totally r ...
... 2a. Total Reflection (Snell’s Window) • At the “critical angle” the refracted beam is at 90, so it can’t get out. • Greater than this “critical angle” there is 100% reflection • Snell’s Window: from underwater a fish sees the entire area above surface in a cone. Outside the cone light is totally r ...
Slide - Journal of Vision
... cosine of the angle between the rays of light from the punctate light source and the surface normal, n. A uniform diffuse light source contributes with a constant amount to the total intensity on the surface. Light absorbed by a Lambertian surface is reemitted uniformly in all directions; the intens ...
... cosine of the angle between the rays of light from the punctate light source and the surface normal, n. A uniform diffuse light source contributes with a constant amount to the total intensity on the surface. Light absorbed by a Lambertian surface is reemitted uniformly in all directions; the intens ...
Beam Splitters A beam splitter is a device that`s used to divide an
... light aluminum is better, and gold may be preferred at longer wavelengths. ...
... light aluminum is better, and gold may be preferred at longer wavelengths. ...
PHYSICS CHAPTER 15 NOTES DIFFRACTION AND
... If the angle of incidence is such that the reflected and refracted rays are at 90 to one another, the reflected ray will be completely polarized in the direction perpendicular to the plane of incident and reflected rays. The corresponding angle of incidence is known as Brewster's Angle. For incidenc ...
... If the angle of incidence is such that the reflected and refracted rays are at 90 to one another, the reflected ray will be completely polarized in the direction perpendicular to the plane of incident and reflected rays. The corresponding angle of incidence is known as Brewster's Angle. For incidenc ...
Chapter 37 Wave Optics (I)
... Calculate the spacing between the bright fringes of yellow light of wavelength 600 nm. The slit separation is 0.8 mm, and the screen is 2 m from the slits. ...
... Calculate the spacing between the bright fringes of yellow light of wavelength 600 nm. The slit separation is 0.8 mm, and the screen is 2 m from the slits. ...
Polarization Practice
... 10. Unpolarized light passes through two Polaroids, the axis of one is vertical and that of the other is at 60o to the vertical. Describe the orientation and intensity of the transmitted light. ...
... 10. Unpolarized light passes through two Polaroids, the axis of one is vertical and that of the other is at 60o to the vertical. Describe the orientation and intensity of the transmitted light. ...
1. Wave Nature of Light
... What is the reflection coefficient and reflectance at normal incidence when a light beam traveling in air is incident on an air/silica interface? How do these compare with part (c) and what is your conclusion? 4. Antireflection (AR) coating a Consider three dielectric media with flat and parallel bo ...
... What is the reflection coefficient and reflectance at normal incidence when a light beam traveling in air is incident on an air/silica interface? How do these compare with part (c) and what is your conclusion? 4. Antireflection (AR) coating a Consider three dielectric media with flat and parallel bo ...
Interference effects Thin film interference Phase
... essentially zero at the top to 1.0μm at the bottom. If the film is illuminated with 650 nm light how many bright bands will appear? ...
... essentially zero at the top to 1.0μm at the bottom. If the film is illuminated with 650 nm light how many bright bands will appear? ...
Particles: Newton Waves: Huygens, Young, Fresnel
... Academie des Sciences for 1819, which was awarded for the best work on diffraction ; -- established the theory that light is a transverse wave; -- invented the Fresnel lens for lighthouses. ...
... Academie des Sciences for 1819, which was awarded for the best work on diffraction ; -- established the theory that light is a transverse wave; -- invented the Fresnel lens for lighthouses. ...
Lecture 22 - LSU Physics
... •What is the phase difference in the beams when they come out? The difference in wavelengths is Ns–Ng=496.41. Each wavelength is 360o, so N=496.41 means =Nx360o=0.41x360o=148o •How thick should the glass be so that the beams are exactly out of phase at the exit (destructive interference!) N=D/ ...
... •What is the phase difference in the beams when they come out? The difference in wavelengths is Ns–Ng=496.41. Each wavelength is 360o, so N=496.41 means =Nx360o=0.41x360o=148o •How thick should the glass be so that the beams are exactly out of phase at the exit (destructive interference!) N=D/ ...
Geometric optics
... Total internal reflection is a phenomenon that happens when a propagating wave strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface. If the refractive index is lower on the other side of the boundary and the incident angle is greater ...
... Total internal reflection is a phenomenon that happens when a propagating wave strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface. If the refractive index is lower on the other side of the boundary and the incident angle is greater ...
Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost. In complex systems such as a telescope, the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer's binoculars or telescopic sight.Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure's performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.