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Final Revision 1] Complete the following
... 4. The shortsighted person is treated by ------------ lens. 5. During the metaphase the ----------- are arranged at the cell equator. 6. The chromosome chemically consists of ----------, and -----------. 7. The light ray that falls passing through the optical center of the convex lens passes ------. ...
... 4. The shortsighted person is treated by ------------ lens. 5. During the metaphase the ----------- are arranged at the cell equator. 6. The chromosome chemically consists of ----------, and -----------. 7. The light ray that falls passing through the optical center of the convex lens passes ------. ...
Light is a form of energy
... When light strikes an object it can be REFLECTED, TRANSMITTED or ABSORBED. ...
... When light strikes an object it can be REFLECTED, TRANSMITTED or ABSORBED. ...
n = c v sin θ = n sin θ Sin θ = n Sin θ = r n - mrkearsley.com
... Refraction– is the bending of the path of a light wave as it passes from one material into another material. Refraction occurs at the boundary and is caused by a change in the speed of the light wave upon crossing the boundary. When the angle of incidence is 0° then refraction will ...
... Refraction– is the bending of the path of a light wave as it passes from one material into another material. Refraction occurs at the boundary and is caused by a change in the speed of the light wave upon crossing the boundary. When the angle of incidence is 0° then refraction will ...
Требования к файлу доклада для публикации
... a similarly rapid microlensing for the FeK_alpha line from the same quasar structure has been observed . The observation of daily microlensing shows that planet mass compact objects in the lens galaxy must dominate the dark matter, as will be discussed further in the report by Minakov et al today [6 ...
... a similarly rapid microlensing for the FeK_alpha line from the same quasar structure has been observed . The observation of daily microlensing shows that planet mass compact objects in the lens galaxy must dominate the dark matter, as will be discussed further in the report by Minakov et al today [6 ...
OGLE-2015-BLG-1482L: The First Isolated Low
... regardless of whether the lens is dark or luminous. This paper is organized as follows. In Section 2the observation of the event OGLE-2015-BLG-1482 is summarized, and we describe the analysis of the light curve in Section 3. With the results of Section 3, we derive physical properties of the source ...
... regardless of whether the lens is dark or luminous. This paper is organized as follows. In Section 2the observation of the event OGLE-2015-BLG-1482 is summarized, and we describe the analysis of the light curve in Section 3. With the results of Section 3, we derive physical properties of the source ...
Today`s Objectives
... diagram. We can do this by using two simple rules: Draw a ray from the top of the image parallel to the principal axis. This ray bends at the lens axis and goes through the principal focus. Draw a ray from the top of the object through the centre of the lens. ...
... diagram. We can do this by using two simple rules: Draw a ray from the top of the image parallel to the principal axis. This ray bends at the lens axis and goes through the principal focus. Draw a ray from the top of the object through the centre of the lens. ...
Lecture 6
... scrambled stellar orbits that make up the spheroidal halo of the Milky Way. Galaxies in clusters are moving at speeds over 1000 km/sec. There is not enough mass in stars to hold these clusters together…there must be additional DARK MATTER in clusters, too. We think this is just the dark matter halos ...
... scrambled stellar orbits that make up the spheroidal halo of the Milky Way. Galaxies in clusters are moving at speeds over 1000 km/sec. There is not enough mass in stars to hold these clusters together…there must be additional DARK MATTER in clusters, too. We think this is just the dark matter halos ...
What is the Universe made of?
... When light passes by a massive object its path is bent. If a massive object lies between us and a distant source, the light rays from the source may be focused changing the appearance of the source. This effect is known as gravitational lensing. When the massive object is something quite small, such ...
... When light passes by a massive object its path is bent. If a massive object lies between us and a distant source, the light rays from the source may be focused changing the appearance of the source. This effect is known as gravitational lensing. When the massive object is something quite small, such ...
Let`s Play Jeopardy!!
... This type of solution is characterized by What are two The size and position of water molecules an image formed by a main ideas of moving into and out of plane mirror the cell the same the cellattheory? rate ...
... This type of solution is characterized by What are two The size and position of water molecules an image formed by a main ideas of moving into and out of plane mirror the cell the same the cellattheory? rate ...
Chapter 19 - Senior Physics
... lens can be drawn using a compass. The centre of the circle that produces the curved surface is called the centre of curvature. Each face can have a different curvature. However, for our discussions we will use lenses whose sides have the same radius of curvature. The line joining the centre of curv ...
... lens can be drawn using a compass. The centre of the circle that produces the curved surface is called the centre of curvature. Each face can have a different curvature. However, for our discussions we will use lenses whose sides have the same radius of curvature. The line joining the centre of curv ...
No Slide Title
... These lenses diverge light from a virtual focus. The focal length of a lens is generally NOT half-way between the center of curvature and the vertex of the lens, but it depends on the lens material’s index of refraction and on the shape of the lens. ...
... These lenses diverge light from a virtual focus. The focal length of a lens is generally NOT half-way between the center of curvature and the vertex of the lens, but it depends on the lens material’s index of refraction and on the shape of the lens. ...
Refraction
... An object’s ability to decrease the speed of light, and therefore cause refraction, is given by its index of refraction. By definition: the index of refraction of a transparent substance is equal to the speed of light in a vacuum divided by the speed of light in that substance. ...
... An object’s ability to decrease the speed of light, and therefore cause refraction, is given by its index of refraction. By definition: the index of refraction of a transparent substance is equal to the speed of light in a vacuum divided by the speed of light in that substance. ...
No Slide Title
... An object’s ability to decrease the speed of light, and therefore cause refraction, is given by its index of refraction. By definition: the index of refraction of a transparent substance is equal to the speed of light in a vacuum divided by the speed of light in that substance. ...
... An object’s ability to decrease the speed of light, and therefore cause refraction, is given by its index of refraction. By definition: the index of refraction of a transparent substance is equal to the speed of light in a vacuum divided by the speed of light in that substance. ...
Technological Inventions of Refraction
... 2. Weak lensing: where the distortions of background sources are much smaller and can only be detected by analyzing large numbers of sources to find coherent distortions of only a few percent. 3. Microlensing: where no distortion in shape can be seen but the amount of light received from a backg ...
... 2. Weak lensing: where the distortions of background sources are much smaller and can only be detected by analyzing large numbers of sources to find coherent distortions of only a few percent. 3. Microlensing: where no distortion in shape can be seen but the amount of light received from a backg ...
Lenses - WFU Physics
... 1. From a point on the object lying off the optical axis, draw a straight line to the lens, parallel to the optical axis, as shown in Figures 5&6. Change the direction of this line on the other side of the lens so that it: a. passes through the focal point, if the lens is converging b. seems to orig ...
... 1. From a point on the object lying off the optical axis, draw a straight line to the lens, parallel to the optical axis, as shown in Figures 5&6. Change the direction of this line on the other side of the lens so that it: a. passes through the focal point, if the lens is converging b. seems to orig ...
Ground-based variability surveys towards Centaurus A: worthwhile
... in the halos of galaxies in other environments or in the halos of other types of galaxies. If the dark matter does indeed have a baryonic MACHO contribution, this component could be different in elliptical galaxies compared to spirals, since they are believed to have undergone different formation hist ...
... in the halos of galaxies in other environments or in the halos of other types of galaxies. If the dark matter does indeed have a baryonic MACHO contribution, this component could be different in elliptical galaxies compared to spirals, since they are believed to have undergone different formation hist ...
Simulating Gravity: Dark Matter and Gravitational Lensing
... (relative to the lens) will appear instead to be located at angular position θ. The lens geometry is shown in the left diagram of Fig. 2, yielding the lens equation θ = β + α, where α is the deflection angle, given by4 ...
... (relative to the lens) will appear instead to be located at angular position θ. The lens geometry is shown in the left diagram of Fig. 2, yielding the lens equation θ = β + α, where α is the deflection angle, given by4 ...
Lenses
... of the lens, it appears to refract through the principal focus. 2. Draw a 2nd ray from the tip of the object through the optical centre (not refracted). 3. The VIRTUAL image appears where the rays ...
... of the lens, it appears to refract through the principal focus. 2. Draw a 2nd ray from the tip of the object through the optical centre (not refracted). 3. The VIRTUAL image appears where the rays ...
powerpoint
... • Microlensing is just a smaller – but not less impressive version of gravitational lensing. • Microlensing involves smaller masses for which light gets much closer. • For this you usually match a moving object vs a more stationary one. • As the two pass each other, the closer one will lens the furt ...
... • Microlensing is just a smaller – but not less impressive version of gravitational lensing. • Microlensing involves smaller masses for which light gets much closer. • For this you usually match a moving object vs a more stationary one. • As the two pass each other, the closer one will lens the furt ...
Document
... • viewed through an eyepiece (changing the eyepiece changes the magnification) • magnification is the ratio of the focal length of the objective to the focal length of the eyepiece ...
... • viewed through an eyepiece (changing the eyepiece changes the magnification) • magnification is the ratio of the focal length of the objective to the focal length of the eyepiece ...
PHYS 202 OUTLINE FOR PART III
... c) If the radii were changed to +10 cm and -5 cm, would the focal length change, and if so what would it be? d) Is this a converging or diverging lens? 30. Design a lens that has a focal length of 5 cm. 31. A 35 mm camera has a lens of focal length 55 mm. a) A picture of a mountain one mile away is ...
... c) If the radii were changed to +10 cm and -5 cm, would the focal length change, and if so what would it be? d) Is this a converging or diverging lens? 30. Design a lens that has a focal length of 5 cm. 31. A 35 mm camera has a lens of focal length 55 mm. a) A picture of a mountain one mile away is ...
ph507lecnote06
... This is just the integral of the area of the Einstein ring along the line of sight to the source. For a uniform density of lenses, can easily show that the maximum contribution comes from lenses halfway to the source. Several groups have monitored stars in the Galactic bulge and the Magellanic cloud ...
... This is just the integral of the area of the Einstein ring along the line of sight to the source. For a uniform density of lenses, can easily show that the maximum contribution comes from lenses halfway to the source. Several groups have monitored stars in the Galactic bulge and the Magellanic cloud ...
Sect.3
... Effects of refraction – separation of visible light into its component colors by a prism. ...
... Effects of refraction – separation of visible light into its component colors by a prism. ...
Heic0116: EMBARGOED UNTIL: 20:00 (CET) WEDNESDAY 05
... The Riddle of Dark Matter The nature of Dark Matter is one of the fundamental puzzles in astrophysics today. Observations of clusters of galaxies and the large scale structure of individual galaxies tell us that no more than a quarter of the total amount of matter in the Universe consists of normal ...
... The Riddle of Dark Matter The nature of Dark Matter is one of the fundamental puzzles in astrophysics today. Observations of clusters of galaxies and the large scale structure of individual galaxies tell us that no more than a quarter of the total amount of matter in the Universe consists of normal ...
Gravitational microlensing
![](https://commons.wikimedia.org/wiki/Special:FilePath/Gravitational.Microlensing.Light.Curve.OGLE-2005-BLG-006.png?width=300)
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.