light notes - Pasti Skor
... Angle of incidence, i = the angle between the incident ray and the normal. Angle of refraction, r = the angle between the refracted ray and the normal When i > r, the ray bent towards the normal, and the speed of light decreases. When r < i , the ray bent away from the normal and the speed of light ...
... Angle of incidence, i = the angle between the incident ray and the normal. Angle of refraction, r = the angle between the refracted ray and the normal When i > r, the ray bent towards the normal, and the speed of light decreases. When r < i , the ray bent away from the normal and the speed of light ...
Galaxies and the Distance Ladder
... • Add up mass of all of the stars, gas, dust, etc. that can be observed. • Observable Mass and Mass measured by rotation ARE NOT THE SAME!! Expected rotation curve from observable mass ...
... • Add up mass of all of the stars, gas, dust, etc. that can be observed. • Observable Mass and Mass measured by rotation ARE NOT THE SAME!! Expected rotation curve from observable mass ...
Convex and Concave Lenses
... Light entering the eye is primarily focused by the cornea because the air-cornea surface has the greatest difference in indices of refraction. The lens is responsible for the fine focus that allows you to see both distant and nearby objects clearly. Using a process called accommodation, muscles surr ...
... Light entering the eye is primarily focused by the cornea because the air-cornea surface has the greatest difference in indices of refraction. The lens is responsible for the fine focus that allows you to see both distant and nearby objects clearly. Using a process called accommodation, muscles surr ...
Cosmology with objects from the Hamburg Quasar Surveys
... measurement of the primordial deuterium abundance therefore gives the cosmic baryon density Щb. A natural place to look for primordial abundances is in high-redshift, low metal abundance intergalactic clouds where there is little contamination with processed matter ejected by stars where D is destro ...
... measurement of the primordial deuterium abundance therefore gives the cosmic baryon density Щb. A natural place to look for primordial abundances is in high-redshift, low metal abundance intergalactic clouds where there is little contamination with processed matter ejected by stars where D is destro ...
Chapter 26
... The angle i from the normal line at which the beam approaches the glass from the air is called the angle of incidence. The angle r from the normal line in the glass is the angle of refraction. As the light passes from the air, a less dense medium, into the glass, a more dense medium, the beam bend ...
... The angle i from the normal line at which the beam approaches the glass from the air is called the angle of incidence. The angle r from the normal line in the glass is the angle of refraction. As the light passes from the air, a less dense medium, into the glass, a more dense medium, the beam bend ...
Chapter 24: Problems
... the object is moved closer to the lens, the image is observed to decrease in size. ...
... the object is moved closer to the lens, the image is observed to decrease in size. ...
Astronomy Astrophysics + Infrared identification of 2XMM J191043.4
... spectrum cannot be completed without ambiguities because of the lack of enough spectral features in that range (Hanson et al. 1996). This problem can be circumvented by combining data for several spectral bands, including the X-rays. On the other hand this system lies in the line of sight of a secon ...
... spectrum cannot be completed without ambiguities because of the lack of enough spectral features in that range (Hanson et al. 1996). This problem can be circumvented by combining data for several spectral bands, including the X-rays. On the other hand this system lies in the line of sight of a secon ...
Investigating Light - Discover Primary Science
... • Find out about the work of Irish Scientist John Tyndall. What contribution did he make to our understanding of light? • Electricity flows in the circuit because of the movement of tiny particles called electrons. Electrons were first named by an Irish scientist called George Johnstone Stoney. Ca ...
... • Find out about the work of Irish Scientist John Tyndall. What contribution did he make to our understanding of light? • Electricity flows in the circuit because of the movement of tiny particles called electrons. Electrons were first named by an Irish scientist called George Johnstone Stoney. Ca ...
GCSE-32A-LIGHT RAY DIAGRAMS BY TAGGART - crypt
... convex. Concave mirrors look like the ________ of a spoon. inside converge Concave mirrors __________ light parallel to the principal principal focus. axis so that all the rays pass through the __________ Makeup mirrors can be concave in order to provide a magnified __________ view of the face. conv ...
... convex. Concave mirrors look like the ________ of a spoon. inside converge Concave mirrors __________ light parallel to the principal principal focus. axis so that all the rays pass through the __________ Makeup mirrors can be concave in order to provide a magnified __________ view of the face. conv ...
MAX-PLANCK-INSTITUT FÜR GRAVITATIONSPHYSIK
... Gravitational waves were first predicted by Einstein in 1916 as a consequence of his general theory of relativity, but have not yet been directly detected. Einstein@Home was developed as part of the World Year of Physics 2005 activities of the American Physical Society. For the past five years, Eins ...
... Gravitational waves were first predicted by Einstein in 1916 as a consequence of his general theory of relativity, but have not yet been directly detected. Einstein@Home was developed as part of the World Year of Physics 2005 activities of the American Physical Society. For the past five years, Eins ...
A dearth of dark matter in strong gravitational lenses
... lenses which are classified as elliptical galaxies, and which have complete photometric data, all with estimates of the stellar mass. In the dynamical analysis, I assume that the total light and mass distribution is given by the spherical Jaffe model (Jaffe 1983) with an effective radius appropriate ...
... lenses which are classified as elliptical galaxies, and which have complete photometric data, all with estimates of the stellar mass. In the dynamical analysis, I assume that the total light and mass distribution is given by the spherical Jaffe model (Jaffe 1983) with an effective radius appropriate ...
© Taganov I
... demonstrated by direct numerical simulation of the Navier-Stokes equations for turbulence. The most common principle-rate-of-strain values for turbulence show stretching in two directions and compression in one [6], which explains observations of the HST ultra deep field observations that the second ...
... demonstrated by direct numerical simulation of the Navier-Stokes equations for turbulence. The most common principle-rate-of-strain values for turbulence show stretching in two directions and compression in one [6], which explains observations of the HST ultra deep field observations that the second ...
Chapter 26: Refraction, Lenses, Optical Instruments Refraction of light
... water directly beneath him. The fish is looking right back. They are the same distance from the air-water interface. To the man, the fish appears to be 2 m beneath his eyes. To the fish, how far above its eyes does the man appear to be? ...
... water directly beneath him. The fish is looking right back. They are the same distance from the air-water interface. To the man, the fish appears to be 2 m beneath his eyes. To the fish, how far above its eyes does the man appear to be? ...
Dark Matter
... • Look Back time ranges from Aldebaran 100light years to first galaxies 13Billion light years • 100Billion galaxies ...
... • Look Back time ranges from Aldebaran 100light years to first galaxies 13Billion light years • 100Billion galaxies ...
THE YELLOW SUPERGIANT PROGENITOR OF THE TYPE II
... MF 555W = −7.54 ± 0.37. In this region of M51 (for which we use an area of ≈8600 arcsec2 ), the density of stars as bright or brighter than Source A implies the probability of randomly finding such a source, within the rms error circle of the transformed SN position, as 9.6 × 10−6 . To determine if ...
... MF 555W = −7.54 ± 0.37. In this region of M51 (for which we use an area of ≈8600 arcsec2 ), the density of stars as bright or brighter than Source A implies the probability of randomly finding such a source, within the rms error circle of the transformed SN position, as 9.6 × 10−6 . To determine if ...
PPT
... Light will follow the straightest possible path through flat space time. If spacetime is curved near a massive object, so the trajectory of light is also curved. ...
... Light will follow the straightest possible path through flat space time. If spacetime is curved near a massive object, so the trajectory of light is also curved. ...
CHAPTER 26 THE REFRACTION OF LIGHT: LENSES AND
... Equation 26.2: n1 sin θ 1 = n2 sin θ 2 . Therefore, n1 = n 2 sin θ 2 /(sin θ 1 ) . Both blocks are made from the same material; therefore, n2 is the same for each system. Furthermore, the angle of incidence is the same for each system; therefore, sin θ1 is the same in both liquids. Thus, the liquid ...
... Equation 26.2: n1 sin θ 1 = n2 sin θ 2 . Therefore, n1 = n 2 sin θ 2 /(sin θ 1 ) . Both blocks are made from the same material; therefore, n2 is the same for each system. Furthermore, the angle of incidence is the same for each system; therefore, sin θ1 is the same in both liquids. Thus, the liquid ...
Broadneck Physics 2010
... The refraction of light in nature that forms rainbows and red lunar eclipses is beautiful, but refraction also is useful. In 1303, French physician Bernard of Gordon wrote of the use of lenses to correct eyesight. Around 1610, Galileo used two lenses to make a telescope, with which he discovered th ...
... The refraction of light in nature that forms rainbows and red lunar eclipses is beautiful, but refraction also is useful. In 1303, French physician Bernard of Gordon wrote of the use of lenses to correct eyesight. Around 1610, Galileo used two lenses to make a telescope, with which he discovered th ...
Optics
... refracted. Because of dispersion, each color is refracted at a slightly different angle. At the back surface of the droplet, the light undergoes total internal reflection. On the way out of the droplet, the light is once more refracted and dispersed. Although each droplet produces a complete spectru ...
... refracted. Because of dispersion, each color is refracted at a slightly different angle. At the back surface of the droplet, the light undergoes total internal reflection. On the way out of the droplet, the light is once more refracted and dispersed. Although each droplet produces a complete spectru ...
The discovery based on GLIMPSE data of a protostar driving a
... We cannot exclude, however, its possible origin in a young planetary nebula (PN) or a proto-planetary nebula (PPN) because these also show similar bipolar morphologies in the infrared (Balick et al. 1987; Kwok 1993). Recombination and forbidden line emission from hydrogen and metals, especially Hα a ...
... We cannot exclude, however, its possible origin in a young planetary nebula (PN) or a proto-planetary nebula (PPN) because these also show similar bipolar morphologies in the infrared (Balick et al. 1987; Kwok 1993). Recombination and forbidden line emission from hydrogen and metals, especially Hα a ...
Binary Star Systems
... – Sufficiently close to Earth and the stars are well enough separated that we can see the two stars individually (resolved) in a telescope and track their motion over a period of time ...
... – Sufficiently close to Earth and the stars are well enough separated that we can see the two stars individually (resolved) in a telescope and track their motion over a period of time ...
Gravitational microlensing
Gravitational microlensing is an astronomical phenomenon due to the gravitational lens effect. It can be used to detect objects that range from the mass of a planet to the mass of a star, regardless of the light they emit. Typically, astronomers can only detect bright objects that emit much light (stars) or large objects that block background light (clouds of gas and dust). These objects make up only a tiny portion of the mass of a galaxy. Microlensing allows the study of objects that emit little or no light.When a distant star or quasar gets sufficiently aligned with a massive compact foreground object, the bending of light due to its gravitational field, as discussed by Einstein in 1915, leads to two distorted unresolved images resulting in an observable magnification. The time-scale of the transient brightening depends on the mass of the foreground object as well as on the relative proper motion between the background 'source' and the foreground 'lens' object.Since microlensing observations do not rely on radiation received from the lens object, this effect therefore allows astronomers to study massive objects no matter how faint. It is thus an ideal technique to study the galactic population of such faint or dark objects as brown dwarfs, red dwarfs, planets, white dwarfs, neutron stars, black holes, andMassive Compact Halo Objects. Moreover, the microlensing effect is wavelength-independent, allowing study of source objects that emit any kind of electromagnetic radiation.Microlensing by an isolated object was first detected in 1989. Since then, microlensing has been used to constrain the nature of the dark matter, detect extrasolar planets, study limb darkening in distant stars, constrain the binary star population, and constrain the structure of the Milky Way's disk. Microlensing has also been proposed as a means to find dark objects like brown dwarfs and black holes, study starspots, measure stellar rotation, and probe quasars including their accretion disks.