![a collection of problems about light rays, refraction and rainbows](http://s1.studyres.com/store/data/007884281_1-84498e30a2b6ecc8a7569acbbba21dc6-300x300.png)
a collection of problems about light rays, refraction and rainbows
... where λ is given in nanometers (blue ≈ 450, green ≈ 530, red ≈ 630). The variation n(λ) is called “dispersion”. Thus different wavelengths of light have different angles χm where they are brightest, and rainbows get their colour. (i) Estimate the angular width of a rainbow. (ii) Why is a rainbow dar ...
... where λ is given in nanometers (blue ≈ 450, green ≈ 530, red ≈ 630). The variation n(λ) is called “dispersion”. Thus different wavelengths of light have different angles χm where they are brightest, and rainbows get their colour. (i) Estimate the angular width of a rainbow. (ii) Why is a rainbow dar ...
Electromagnetic Radiation Name
... Q10. What sort of radiation is used for these night vision and thermal imaging in hospitals. Q11. Invisible, powerful wavelengths (shorter than light but longer than X rays) emitted by the sun separated into three types, UV-A, UV-B and UV-C. UV-B causes sunburn, and prolonged exposure can cause skin ...
... Q10. What sort of radiation is used for these night vision and thermal imaging in hospitals. Q11. Invisible, powerful wavelengths (shorter than light but longer than X rays) emitted by the sun separated into three types, UV-A, UV-B and UV-C. UV-B causes sunburn, and prolonged exposure can cause skin ...
Interference 1 - schoolphysics
... think interference would help solve this problem? 16. Describe how interference could be useful in testing the perfection of flat and curved glass surfaces. 17. A motorist drives along a motorway at a steady speed of 30 ms -1 between two cities listening to the car radio. As she travels along she no ...
... think interference would help solve this problem? 16. Describe how interference could be useful in testing the perfection of flat and curved glass surfaces. 17. A motorist drives along a motorway at a steady speed of 30 ms -1 between two cities listening to the car radio. As she travels along she no ...
11.2 - Partial Refraction and Total Internal Reflection
... Sometimes when you look out a window, you see what is outside as well as your own reflection This is because some light reflects and some light refracts at a surface between two media that have different indices of refraction This phenomenon is called partial reflection and refraction ...
... Sometimes when you look out a window, you see what is outside as well as your own reflection This is because some light reflects and some light refracts at a surface between two media that have different indices of refraction This phenomenon is called partial reflection and refraction ...
1 - RosedaleGrade10Science
... Electromagnetic waves travel at the speed of light (c = 3.0 ×108 m/s in a vacuum) and do not require a medium for transmission. Type of electromagnetic wave Radio ...
... Electromagnetic waves travel at the speed of light (c = 3.0 ×108 m/s in a vacuum) and do not require a medium for transmission. Type of electromagnetic wave Radio ...
Nikon Glass News Winter 2015
... combining various optical materials, as dispersion is influenced by optical materials such as glass, etc. The semiconductor lithography systems field, one of the more cutting-edge areas of optical design, requires high-performance lenses in order to project refined mask patterns. When a super-high-p ...
... combining various optical materials, as dispersion is influenced by optical materials such as glass, etc. The semiconductor lithography systems field, one of the more cutting-edge areas of optical design, requires high-performance lenses in order to project refined mask patterns. When a super-high-p ...
Reflect/Refract
... •Prisms are rarely used in research •Diffraction gratings work better •Lenses are a lot like prisms •They focus colors unevenly •Blurring called chromatic dispersion •High quality cameras use a combination of lenses to cancel this effect ...
... •Prisms are rarely used in research •Diffraction gratings work better •Lenses are a lot like prisms •They focus colors unevenly •Blurring called chromatic dispersion •High quality cameras use a combination of lenses to cancel this effect ...
homework - Homework Market
... Light Reflection and Refraction Lab Using PhET Simulation I) Introduction: When a light ray strikes a smooth interface separating two transparent materials (like air, glass, or water), the wave is partly reflected and partly refracted (or transmitted) into the second material. For an example of this ...
... Light Reflection and Refraction Lab Using PhET Simulation I) Introduction: When a light ray strikes a smooth interface separating two transparent materials (like air, glass, or water), the wave is partly reflected and partly refracted (or transmitted) into the second material. For an example of this ...
The Photoelectric Effect in Practice WS Key
... 5. How many green photons with a wavelength of 540 nm are required to have a total energy of 1 Joule? ...
... 5. How many green photons with a wavelength of 540 nm are required to have a total energy of 1 Joule? ...
Optical properties
... photons give their energy, but photons of identical energy are immediately emitted by the material (reflection); photons may not interact with the material structure (transmission); or during transmission photons are changes in velocity (refraction). At any instance of light interaction with a mat ...
... photons give their energy, but photons of identical energy are immediately emitted by the material (reflection); photons may not interact with the material structure (transmission); or during transmission photons are changes in velocity (refraction). At any instance of light interaction with a mat ...
Microscopy - u.arizona.edu
... A. Eyes and Brain like to compare differences in either color or intensity of light B. Allows better detail to be “seen”; defines edges, borders, etc. e. Aberrations A. Lens are not perfect; chromatic, spherical aberrations occur among others B. The higher the quality of the lens, the less aberratio ...
... A. Eyes and Brain like to compare differences in either color or intensity of light B. Allows better detail to be “seen”; defines edges, borders, etc. e. Aberrations A. Lens are not perfect; chromatic, spherical aberrations occur among others B. The higher the quality of the lens, the less aberratio ...
Determination of Absolute Values of Refractive Index of Liquids
... θ2 , βθ and β 2 are errors. One sees that it is necessary to keep these angles smaller than 10−3 in order to obtain results of the desired precision. The beams should travel right back ...
... θ2 , βθ and β 2 are errors. One sees that it is necessary to keep these angles smaller than 10−3 in order to obtain results of the desired precision. The beams should travel right back ...
of Refraction 2.0
... If the optical path length of one beam changes by one wavelength, the interference pattern is shifted by one fringe. The optical path length is equal to nL, where n is the Index of refraction and L is the physical path length. The optical path length can be varied by changing either n or L. In our e ...
... If the optical path length of one beam changes by one wavelength, the interference pattern is shifted by one fringe. The optical path length is equal to nL, where n is the Index of refraction and L is the physical path length. The optical path length can be varied by changing either n or L. In our e ...
concave lens
... In 1665, Italian scientist Francesco Maria Grimaldi observed that the edges of shadows are not perfectly sharp. He introduced a narrow beam of light into a dark room and held a rod in front of the light such that it cast a shadow on a white surface. The shadow cast by the rod on the white surface wa ...
... In 1665, Italian scientist Francesco Maria Grimaldi observed that the edges of shadows are not perfectly sharp. He introduced a narrow beam of light into a dark room and held a rod in front of the light such that it cast a shadow on a white surface. The shadow cast by the rod on the white surface wa ...
1 Experiment #1: Reflection, Refraction, and Dispersion Purpose: To
... Supplementary Problem 1: Derive the exact relationship between and , and compare it to your experimental result. 3. Label a new page (3). Allow a single ray to strike the midpoint of the concave mirror at an oblique angle. Trace the surface of the mirror and the incident and reflected rays. Draw ...
... Supplementary Problem 1: Derive the exact relationship between and , and compare it to your experimental result. 3. Label a new page (3). Allow a single ray to strike the midpoint of the concave mirror at an oblique angle. Trace the surface of the mirror and the incident and reflected rays. Draw ...
Aspheric Lenses
... elements to truly push the optical envelope." The truth is long lenses may use ULD and Fluorite glass, but wide angles and lenses of shorter than 200mm do not. Wide angles may use aspheric lens elements but not LD glass types. Long lenses do not use aspheric lenses. ...
... elements to truly push the optical envelope." The truth is long lenses may use ULD and Fluorite glass, but wide angles and lenses of shorter than 200mm do not. Wide angles may use aspheric lens elements but not LD glass types. Long lenses do not use aspheric lenses. ...
A simple demonstration of frustrated total internal reflection
... prisms do not suffer from any mechanical deformation over the measured range. If the stage is set at an angle larger than cr = −5 ° 44⬘, we observe frustrated total internal reflection and its characteristic exponential decay as the prisms are translated, instead of periodic oscillations in the tra ...
... prisms do not suffer from any mechanical deformation over the measured range. If the stage is set at an angle larger than cr = −5 ° 44⬘, we observe frustrated total internal reflection and its characteristic exponential decay as the prisms are translated, instead of periodic oscillations in the tra ...
HP unit 12 - wave optics student handout
... the top surface of film while the other part is transmitted into the thin film where it reflects off bottom surface (of film). Waves are NEARLY parallel. ...
... the top surface of film while the other part is transmitted into the thin film where it reflects off bottom surface (of film). Waves are NEARLY parallel. ...
Fraunhofer diffraction from gratings In this exercise we use a two
... Fraunhofer diffraction from gratings In this exercise we use a two-dimensional grating consisting of many straight and equidistant lines in a plane (a slide). We perform Fraunhofer diffraction which means a parallel incident beam entering the object, and we observe the diffraction pattern far away f ...
... Fraunhofer diffraction from gratings In this exercise we use a two-dimensional grating consisting of many straight and equidistant lines in a plane (a slide). We perform Fraunhofer diffraction which means a parallel incident beam entering the object, and we observe the diffraction pattern far away f ...
PH4035 - Principles of Optics
... provide a detailed discussion of different optical instruments for spectroscopy, benchmark, and compare them define optical coherence and relate it to spectral and spatial properties of the light source by way of the Wiener-Khintchine theorem introduce and develop Kirchoff's theory of scalar diffrac ...
... provide a detailed discussion of different optical instruments for spectroscopy, benchmark, and compare them define optical coherence and relate it to spectral and spatial properties of the light source by way of the Wiener-Khintchine theorem introduce and develop Kirchoff's theory of scalar diffrac ...
6.2 Refraction
... When propagating from a higher refractive index region into a region with a lower refractive index, the largest angle that will be transmitted is the critical angle. Light impinging on the refractive index boundary at angles greater than the critical angle will undergo ____________________. The wave ...
... When propagating from a higher refractive index region into a region with a lower refractive index, the largest angle that will be transmitted is the critical angle. Light impinging on the refractive index boundary at angles greater than the critical angle will undergo ____________________. The wave ...
Anti-reflective coating
![](https://commons.wikimedia.org/wiki/Special:FilePath/Anti-reflective_coating_comparison.jpg?width=300)
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.