Class 10 Reflection and refraction of Light
... A concave lens has the ability to diverge a beam of light rays incident on it. Thus, it is called a diverging lens. Optical centre Optical centre is a point at the centre of the lens. It always lies inside the lens and not on the surface. It is denoted by ‘O’. Centre of curvature It is the centre po ...
... A concave lens has the ability to diverge a beam of light rays incident on it. Thus, it is called a diverging lens. Optical centre Optical centre is a point at the centre of the lens. It always lies inside the lens and not on the surface. It is denoted by ‘O’. Centre of curvature It is the centre po ...
lecture27
... us about galaxy formation? • The Milky Way’s halo stars are very old and their orbits have random orientations, suggesting that they did indeed form before the protogalactic cloud collapsed into a disk. The low abundances of heavy elements in halo stars tell us they were born before the star-gas-sta ...
... us about galaxy formation? • The Milky Way’s halo stars are very old and their orbits have random orientations, suggesting that they did indeed form before the protogalactic cloud collapsed into a disk. The low abundances of heavy elements in halo stars tell us they were born before the star-gas-sta ...
ppt - lenac
... Title Studying the low surface brightness galaxies from the SDSS With the advent of large aperture telescopes (VLT, Magellan, GEMINI, etc.) the detailed (high S/N spectroscopy, high spatial resolution, etc.) study of low surface brightness galaxies (LSBGs) become possible. These low stellar density ...
... Title Studying the low surface brightness galaxies from the SDSS With the advent of large aperture telescopes (VLT, Magellan, GEMINI, etc.) the detailed (high S/N spectroscopy, high spatial resolution, etc.) study of low surface brightness galaxies (LSBGs) become possible. These low stellar density ...
Class3.Lithograph Part 2
... The angle q in the figure on the top right is the maximum angle for which diffracted light from the mask will be collected for imaging by the lens. With sin q = N l/d only those values of N for which the term on the right is less than sin q are allowed. Thus, as the period d gets smaller (l/d gets l ...
... The angle q in the figure on the top right is the maximum angle for which diffracted light from the mask will be collected for imaging by the lens. With sin q = N l/d only those values of N for which the term on the right is less than sin q are allowed. Thus, as the period d gets smaller (l/d gets l ...
III-Advanced Lithography
... The angle q in the figure on the top right is the maximum angle for which diffracted light from the mask will be collected for imaging by the lens. With sin q = N l/d only those values of N for which the term on the right is less than sin q are allowed. Thus, as the period d gets smaller (l/d gets l ...
... The angle q in the figure on the top right is the maximum angle for which diffracted light from the mask will be collected for imaging by the lens. With sin q = N l/d only those values of N for which the term on the right is less than sin q are allowed. Thus, as the period d gets smaller (l/d gets l ...
Class 10 Reflection and refraction of Light
... A concave lens has the ability to diverge a beam of light rays incident on it. Thus, it is called a diverging lens. Optical centre Optical centre is a point at the centre of the lens. It always lies inside the lens and not on the surface. It is denoted by ‘O’. Centre of curvature It is the centre po ...
... A concave lens has the ability to diverge a beam of light rays incident on it. Thus, it is called a diverging lens. Optical centre Optical centre is a point at the centre of the lens. It always lies inside the lens and not on the surface. It is denoted by ‘O’. Centre of curvature It is the centre po ...
Coming Home - Marcia Bartusiak
... the evening sky was never obscured by pollution and city lights, this starry canopy looked like a river of milk, and so it came to be known as the Milky Way. The word galaxy, in fact, is derived from gala, the Greek word for milk. The Milky Way is our home galaxy. For centu ries its borders defined ...
... the evening sky was never obscured by pollution and city lights, this starry canopy looked like a river of milk, and so it came to be known as the Milky Way. The word galaxy, in fact, is derived from gala, the Greek word for milk. The Milky Way is our home galaxy. For centu ries its borders defined ...
Refraction Total Internal Reflection Chromatic Abberation
... 1. Reset the ray table so that the ray is aligned with the NORMAL line. If it’s out of alignment, use the knob on the light source to line it back up. 2. Place the cylindrical lens on the ray table. Align the flat side of the lens with the line marked “COMPONENT”. The round side of the lens points t ...
... 1. Reset the ray table so that the ray is aligned with the NORMAL line. If it’s out of alignment, use the knob on the light source to line it back up. 2. Place the cylindrical lens on the ray table. Align the flat side of the lens with the line marked “COMPONENT”. The round side of the lens points t ...
What We Might Learn from Gravitational Waves
... Most promising GW+EM source: Short/hard Gamma-ray burst GRBs definitely exist ~1/day in the Universe GRBs are very bright/relativistic GRBs can be detected “all sky” throughout the Universe GRBs have been observed “nearby” Some long, and some short (2 second divide) ...
... Most promising GW+EM source: Short/hard Gamma-ray burst GRBs definitely exist ~1/day in the Universe GRBs are very bright/relativistic GRBs can be detected “all sky” throughout the Universe GRBs have been observed “nearby” Some long, and some short (2 second divide) ...
Chapter 12 Class 10th
... dentists use a small concave mirror to have a look of backside of tooth and cavity in it. Doctors also use it to examine ear, nose, throat etc. iii. As objective of reflecting telescope A concave mirror of large aperture is used as objective in telescope. Greater amount of light is incident from the ...
... dentists use a small concave mirror to have a look of backside of tooth and cavity in it. Doctors also use it to examine ear, nose, throat etc. iii. As objective of reflecting telescope A concave mirror of large aperture is used as objective in telescope. Greater amount of light is incident from the ...
Jacaranda Physics 1 2E Chapter 2
... that the ratio was still constant, but it had a different value. This suggested that different substances bend light by different amounts. (Remember that some light is always reflected.) In fact, there is a different ratio for each pair of substances (for example air and glass, air and water). A dif ...
... that the ratio was still constant, but it had a different value. This suggested that different substances bend light by different amounts. (Remember that some light is always reflected.) In fact, there is a different ratio for each pair of substances (for example air and glass, air and water). A dif ...
PowerPoint Presentation - Int2 unit3
... ultrasound procedure. Why is this? Good contact is important. Otherwise the ultrasound waves will simply bounce off the outer skin and no image will be obtained. It makes movement of the transducer easier. It ensures a clear picture is obtained. ...
... ultrasound procedure. Why is this? Good contact is important. Otherwise the ultrasound waves will simply bounce off the outer skin and no image will be obtained. It makes movement of the transducer easier. It ensures a clear picture is obtained. ...
Jeopardy Review (PowerPoint) - Naperville Community Unit
... Where is an image formed from distant light that is reflected off a concave mirror with a center of curvature of 300 cm ? Back ...
... Where is an image formed from distant light that is reflected off a concave mirror with a center of curvature of 300 cm ? Back ...
Document
... The simple converging lens is called “Magnifying glass”. It is used to see small objects enlarge. How large an object appears, depends on the size of the image, it makes on the retina of an eye. This depends on the angle subtended by the object at the eye. As an object bring up close to our eyes so ...
... The simple converging lens is called “Magnifying glass”. It is used to see small objects enlarge. How large an object appears, depends on the size of the image, it makes on the retina of an eye. This depends on the angle subtended by the object at the eye. As an object bring up close to our eyes so ...
Optics - WebAssign
... When light propagates from one medium into another, the ray bends toward or away from the normal in the second medium. Which way and how much it bends depends on the optical density of the material or medium defined by the refractive index 9 n of the medium. A perfect vacuum has an index of refracti ...
... When light propagates from one medium into another, the ray bends toward or away from the normal in the second medium. Which way and how much it bends depends on the optical density of the material or medium defined by the refractive index 9 n of the medium. A perfect vacuum has an index of refracti ...
Photonic Crystal Negative Refractive Optics
... is always inside the light cone in the PC slab, for which light is not confined in the slab but is instead radiated into out-of-plane directions. Figure 2(a) shows details of the dispersion surface of the second band in an actual PC slab designed for prism and lens effects.18 Here, a square lattice r ...
... is always inside the light cone in the PC slab, for which light is not confined in the slab but is instead radiated into out-of-plane directions. Figure 2(a) shows details of the dispersion surface of the second band in an actual PC slab designed for prism and lens effects.18 Here, a square lattice r ...
How Light and Sound Interact with Matter - McGraw
... Interference refers to the superposition of two waves traveling within the same medium when they interact. When applied to light waves, interference occurs only when the waves have the same wavelength and a fixed phase difference (i.e., the difference in which the peaks of one wave lead or lag the p ...
... Interference refers to the superposition of two waves traveling within the same medium when they interact. When applied to light waves, interference occurs only when the waves have the same wavelength and a fixed phase difference (i.e., the difference in which the peaks of one wave lead or lag the p ...
Explicit expressions for optical scalars in gravitational lensing from
... Explicit expressions for optical scalars in gravitational lensing from general matter sources ...
... Explicit expressions for optical scalars in gravitational lensing from general matter sources ...
Optics
... Diffuse reflection is when light bounces off a non-smooth surface. Each ray of light still obeys the law of reflection, but because the surface is not smooth, the normal can point in a different for every ray. If many light rays strike a non-smooth surface, they could be reflected in many different ...
... Diffuse reflection is when light bounces off a non-smooth surface. Each ray of light still obeys the law of reflection, but because the surface is not smooth, the normal can point in a different for every ray. If many light rays strike a non-smooth surface, they could be reflected in many different ...
Optics
... Diffuse reflection is when light bounces off a non-smooth surface. Each ray of light still obeys the law of reflection, but because the surface is not smooth, the normal can point in a different for every ray. If many light rays strike a non-smooth surface, they could be reflected in many different ...
... Diffuse reflection is when light bounces off a non-smooth surface. Each ray of light still obeys the law of reflection, but because the surface is not smooth, the normal can point in a different for every ray. If many light rays strike a non-smooth surface, they could be reflected in many different ...
optics
... Diffuse reflection is when light bounces off a non-smooth surface. Each ray of light still obeys the law of reflection, but because the surface is not smooth, the normal can point in a different for every ray. If many light rays strike a non-smooth surface, they could be reflected in many different ...
... Diffuse reflection is when light bounces off a non-smooth surface. Each ray of light still obeys the law of reflection, but because the surface is not smooth, the normal can point in a different for every ray. If many light rays strike a non-smooth surface, they could be reflected in many different ...
The spin and orbit of the newly discovered pulsar IGR J17480-2446
... period estimates are evaluated accordingly. The best-fitting orbital solution we obtain with this technique is shown in the leftmost column of Table 1. The time series were then corrected for the orbital motion with these parameters and folded around the best estimate of the spin period over 300 s d ...
... period estimates are evaluated accordingly. The best-fitting orbital solution we obtain with this technique is shown in the leftmost column of Table 1. The time series were then corrected for the orbital motion with these parameters and folded around the best estimate of the spin period over 300 s d ...
Reflection and Refraction of Light
... above, changing from a 10-mm eyepiece, to a 5 mm eyepiece would change the magnification from 100 to 200. With this in mind, why do we usually use longer focal length eyepieces (i.e. around 20 to 50 mm), as opposed to much shorter eyepieces that would provide unlimited magnification? The answer has ...
... above, changing from a 10-mm eyepiece, to a 5 mm eyepiece would change the magnification from 100 to 200. With this in mind, why do we usually use longer focal length eyepieces (i.e. around 20 to 50 mm), as opposed to much shorter eyepieces that would provide unlimited magnification? The answer has ...
- Physics365.com
... Let a ray of light be incident along PQ at angle of incidence (i) on refracting surface AB of a prism. Let it be refracted angle QR angle of refraction (r1) and again be incident is the other refracting surface AC at an angle (r2), which immerges along RS at an angle of emergence (e) If we proceed t ...
... Let a ray of light be incident along PQ at angle of incidence (i) on refracting surface AB of a prism. Let it be refracted angle QR angle of refraction (r1) and again be incident is the other refracting surface AC at an angle (r2), which immerges along RS at an angle of emergence (e) If we proceed t ...
Lecture 24, The local group
... The total mass of the Milky Way is ~ 1.5 x 1012 M The MW is one of the few galaxies for which we have an estimate of the total mass, rather than just the mass out to the end of a rotation curve. The stellar mass is about 6 x 1010 M So the stellar baryons are only about 4% of the total mass Compare t ...
... The total mass of the Milky Way is ~ 1.5 x 1012 M The MW is one of the few galaxies for which we have an estimate of the total mass, rather than just the mass out to the end of a rotation curve. The stellar mass is about 6 x 1010 M So the stellar baryons are only about 4% of the total mass Compare t ...
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.