how does reflection and refraction of light take place as per Huygen's theory?
609124
Reflection and refraction do not directly prove Huygen's Theorem, at least not in any way I'm familiar with. Diffraction patterns, such as those of single and double slits, are clear examples of Huygen's Theroem in action.\n(We haven't done wave optics yet)
785037
You must to review the diagram... note that the light escape in a second reflection, no in the first reflection.
1117553
Light can move in a few ways, all of which are rays.  Rays are striaght lines, and light can never curve (unless you are in a black hole, if that's the case....too bad for you) but it can be REFLECTED or REFRACTED.\n\nReflection is when a light ray bounces off of a surface and does so in predictable angles.  On a flat surface, the light relflects at an angle equal to that which struck the surface.  This is how a flat, or plane, mirror works (bathroom cabinet, dresser).  A rounded surface can magnify and distort an image by reflecting the light rays at different angles over its entire surface.  The law of reflection still holds true, but since the surface is irregular, the image reflected is not true to life (fun house mirrors, magnifying mirror for make-up or shaving).\n\nREFRACTION is the bending of light as it changes mediums and cause changes to images as well, such as when looking into an aquarium tank.  I know you didn't ask about this, but call it a bonus.
626191
I did find 0.47 for the refraction index "http://www.robinwood.com/Catalog/Technical/Gen3DTuts/Gen3DPages/RefractionIndexList.html" but I I do not know at what wave lenght that I am not seeing probably for green or blue. I found another values has well following:\nhttp://engr.smu.edu/ee/smuphotonics/Modeig/pages/MISC/RNCRIM.DOC\nn=0.18+i*5.72 for 900nm (near infrared)\nn=0.08+i*4.98 for 827nm (red)\n\nI do think it changes a lot with the wavelenght that you input\n\nI do not now if you know what the i means but is the imaginary part of the refraction index it reflects the absorption that light will suffer in the metal. Gold has a metal behaves to the the light much has it behaves  the plasma ones it has free electrons. This explines 2 things the imaginary part and second the value that is minus then 1. the imaginary part is due to the current that are induced when the light incidates in the metals it creates a current that consequently creates an energy lost. (ohm`s theorem) second the efect that is minus then one reflects that the phase velocity seams to propagate at a velocity larger then the velocity of light in vacuum ( its a rouder normal stuff in plasmas if you want to know more tell me I can inform you). Atention this does not mean that the energy travels faster then c it just means the phase does. \n\nif you want me to tell you why is it faster then light it is a litle bit more complicated but if you insist tell me
157062
Its all about reflection of light.
1053030
Everything you see comes from light that enters your eyes.  The study of light is called OPTICS it is part of the science named PHYSICS.\n\nWhat your reflection looks like depends on a lot of things.  How large is the sphere? Where are you standing in the sphere?  If you think about it, what you see in the mirror depends on where you stand.  You can try this in just a regular flat mirror.  Stand in different spots, and look at what you see.\n\nI have given you a few links showing diagrams of how light rays are reflected in a spherical mirror.   If you were inside, you would be seeing a concave surface.\n\nEscher drew pictures of what he would look like in a spherical mirror, from the outside.  You can do this yourself,  by looking in the gardening area for a mirror globe, or a glass Christmas ball.\n\nA concave reflecting surface can be found in a magnifying mirror, or in a spoon or bowl.  I have also included a link to purchase spherical mirrors and other optical  devices.  Finally, I have included a site with some virtual optical experiments.\n\nI hope this helps to answer your question.  Have fun!
1122883
A white object spreads the light into many directions. A mirror doesn't, it instead keeps the light focused, which is why we can see our images.
353441
Refraction occurs when light enters two substances of diferent densities. It bends because the mass of the two substances are different ie, the spacing of particles are different.
78735
Light, form of electromagnetic radiation similar to radiant heat, radio waves, and X rays. Light consists of extremely fast oscillations of an electromagnetic field in a particular range of frequencies that can be detected by the human eye. Different colour sensations are produced by light vibrating at different frequencies, ranging from about 4 × 1014 vibrations per second for red light to about 7.5 × 1014 vibrations per second for violet light. The visible spectrum of light is usually defined by its wavelength, ranging from the smallest visible wavelength for violet, about 40 millionths of a centimetre (16 millionths of an inch), to 75 millionths of a centimetre (about 30 millionths of an inch) for red. Higher frequencies, corresponding to shorter wavelengths, comprise ultraviolet radiation, and still higher frequencies are associated with X-rays. Lower frequencies, which are at longer wavelengths, are called infrared radiation, and still lower frequencies are characteristic of radio waves. Most light comes from electrons that vibrate at these high frequencies when heated to a high temperature. The higher the temperature, the greater the frequency of vibration and the bluer the light produced.\nLight is emitted from a source in straight lines and spreads out over a larger and larger area as it travels; the light per unit area diminishes as the square of the distance. When light strikes an object, it is either absorbed or reflected; light reflected from a rough surface is scattered in all directions. Some frequencies are reflected more strongly than others, and this gives objects their characteristic colour. White surfaces scatter light of all wavelengths equally, and black surfaces absorb nearly all light. Image-forming reflection, on the other hand, requires a highly polished surface such as that of a mirror.\n\nDefining the nature of light has always been a fundamental problem in physics. The English mathematician and physicist Sir Isaac Newton described light as an emission of particles, and the Dutch astronomer, mathematician, and physicist Christiaan Huygens developed the theory that light travels by a wave motion.\n\nIt is now believed that these two theories are essentially complementary, and the development of quantum theory has led to the recognition that in some experiments light acts like a series of particles and in other experiments it acts like a wave. In those situations in which it travels in wave motion, the wave vibrates at right angles to the direction of travel; therefore light can be polarized in two mutually perpendicular planes (see Optics).\n\nIII  VELOCITY \n\nThe speed of light was first measured in a laboratory experiment by the French physicist Armand Hippolyte Louis Fizeau, although earlier astronomical observations had yielded approximately the right velocity. By the 1970s the speed of light had been measured very precisely as 299,792,458 m/sec (186,282.397 mi/sec) in a vacuum, and could be used to measure large distances by the time it took for a pulse of light or radio waves to reach a target and return. This is the principle of radar and sonar. Accurate knowledge of the speed and the wavelength of light also permits accurate measurement of length. In fact, in 1983 the metre was redefined as the length of the path travelled by light in a vacuum during a time interval of 1/299,792,458 of a second. The velocity of light in air varies slightly with wavelength, averaging about 3 per cent less than in vacuum; the speed in water is about 25 per cent less, and in glass, 33 per cent less.\n\nLight has an important effect on many chemicals. Sunlight, for example, is used by plants to carry out photosynthesis, and the exposure of certain silver-containing chemicals to light causes them to turn dark in the presence of other chemicals, as is the case in photography.
1009361
y dont u do ur homework urself .ok heres abrief intro.\n\n1.see the level of frequency changes when beam of ultra violet light rays enter to one medium from another medium(to glass from air).\n\n2.when light undergoes refraction it frequency changes its speed acc. to the medium such as(glass,air and water)\n\n3.yes there will be,as light enters to one medium from another medium.
144703
No, one of the defining properties of a photon is that two or more are capable of simulatenously existing at the same co-ordinates. As such they can't possibly intercept each other or cause refraction since that requires either that they bounce of one another or else slow one another down. Neither is possible if they are to continue being capable of coexiting at the same location.\n\nPhotons can certainly interfere with each other, but only to the extent of increasing or decreasing amplitude, not wavelength or direction. At best you could theoretically reduce the amplitude of one source to zero, thus making it cease to exist, or alternatively boost the amplitude for a stronger signal.
1164989
The energy from the light is absorbed into the walls, etc.  If you could create a room that had everything in it 100% reflective, then the light would continue to exist.  But, you wouldn't know this, because you are not 100% reflective, and you would absorb the light.
968675
A question I have wondered myself.\n\nThe best I can manage is this...\n\nI know that it is a thought experiment but it is actually impossible for the waves to be perfectly recombined as you suggest.\n\nFor example, if one of them passes through a partially reflective surface with the other undergoing its phase shift and then being sent back to reflect from the surface into the path then some of this energy will be transmitted through the partial reflector while some of the original ray will reflect off it.  These will then interfere constructively (there will be an additional phase shift).\n\nI think that there will always be this kind of loop-hole, no matter how you do it.\n\nIf you only do it approximately, so that the waves are very close to converging (with a phase shift) then you get an interference pattern that is pretty much zero along the central path (ie the first order solution is destructive to zero as expected) but with constructive interference elsewhere so that energy is conserved overall.\n\nI hope this is clear!
550478
Refrective index water should be the same throught, provided that all the other conditions are the same throughout -- such as temperature, presense of impurity, etc.\n\nIts not the refrective index of water alone that determines whether light will be reflected or not or at what angle the light should be projected to be reflected. When you are talking about the surface of the water, you are really talking about the interface between water and air. When you are talking about "under the water", light is not changing media.
125793
basic principles of wave propigation. a body in motion tends to stay in motion. if what you're saying is the vacuum is deviod of all matter, including subatomic particles, the wave would continue forever, with one exception. if the beam reflecting around the room collided with itself (say it caught itself in a corner), it would cause sufficient refraction to scatter the beam eventually. photons expend no energy to travel, so the room would stay lit up forever. and man, that would have to be some badass 100% reflective material! ;->
422475
Angle at which light is totally reflected. \n\nThis website has a good diagram.\n\nhttp://www.physicsclassroom.com/Class/refrn/U14L3c.html
123405
Do you mean refraction?