What's the liquid that has the highest index of refraction ?
362583
go here for the answer to your question:\n\nhttp://www.2spi.com/catalog/ltmic/cargille-liquid.html\n\ngood luck.
843731
there is an optical effect like this ( it is just a refraction at an interface - like water and air ) and sorry i can't remember either ( i will search tho )\n\ncool i searched the term ATMOSPHERIC REFRACTION and guess what LOL( go to Wikipedia )
476594
Would that be refraction?
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.
262694
If you mean at what wavelength does polystyrene have its strongest absorption in the ir, you may find your answer at the link below.\n\nhttp://webbook.nist.gov/chemistry/name-ser.html\n\nHere you can type in a name and find some physical data. Good luck
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.
1124459
The refractive index of a material depends on how it responds to magnetic fields (quantified by its permeability) and electric fields (quantified by its permittivity). The refracive index is given by the square root of the product of these.\n\nFor normal transparent material, both are +ve, so this square root is real. For things like metals, one or the other is -ve, and the refractive index is imaginary (ie involves the square root of -1). These materials are opaque.\n\nBut for meta materials both are -ve. So the refractive index is once again real, but because these materials have odd behaviours the normal convention of using the +ve root for the refractive index is reverse, and a -ve is used.\n\nMeta materials still slow light down, but some of the usual rules are reversed. For instance, the doppler shift is reversed and snells law works in the opposite direction.
642439
I assume that the light enters water through the glass since incidence is less than refracted angle also assuming refrative index of glass as 1.66 and water as 1.33\n\nWhat is the question then ? Also how can light return to where it originates ? That is dependent on the setup.
1143445
Water has a density maxima at 4C
885641
Assuming that they have equal masses, it would be whichever material has the highest specific heat, because that defines how much heat energy is required to increase a unit mass of material by a unit temperature.  Water is known for having a very high specific heat, so it could be that, but you should really look up the specific heat (or "specific heat capacity") for all of these materials in your text book.
840473
Need more specifics as to your problem.\n\nHowever, I assume you are trying to do a quantitation on a UV or vis absorbing substance.\n\nMake up  a set of standards of known concentration of your analyte in the solvent you will be analyzing in.  Then do some scans over the whole wavelength range. \n\nUsually pick the wavelength at the top of the largest absorbance peak, unless that is a wavelength which will have interferences from other substances present.  If so, then pick a wavelength with good absorbance that is not subject to such interference.
879801
Pentane\n\nIt depends on which compound has the strongest intermolecular forces. In the case of hydrocarbons the intermolecular forces that are present are dispersion forces.\nIn such cases:\n"The more branched a molecule is, the more "spherical" it is, and the smaller surface area it will have - since dispersion forces increase with surface area, the more branched molecules will have a lower boiling point. You may notice that the trend in the melting points is rather different - this is because the longer a branch is, the more potential it has to flop around and disrupt the regular crystalline lattice of frozen pentane, giving a liquid state."
1075335
You have to change the character of the material to change the refractive index.  Also materials can absorb light, which isn't really due to refractive index in the conventional sense of the term.  In E&M you can make index of refraction a complex number (a real plus an imaginary component) and use the imaginary part to represent the absorbtive properties.  \n\nThe refractive index of air is so close to that of vacuum primarily because air is so diffuse. Liquid nitrogen (essentially liquid air) has a much higher index, about that of water.  Even liquid helium has a noticible index, and that is not even a dipole! \n\nThe invisible man's best bet is to lower his density  a LOT.  Kinda be hard to function.  Can't change index of refraction without also changing the chemistry and/or the density of the material.
224445
The maximum velocity of light is in air (strictly in vacuum).\n\nThe velocity is less in other medium.\n\nThe change in velocity from medium to medium is refraction.\n\nWhen light enters from medium 1 to medium 2, a potion of light is bounced back into the medium 1 and the remaining passes into medium 2 (Refracted). The bouncing back is reflection.\n\nThe proportion of reflection or refraction depends on the angle the \nray makes at the point of incidence on the boundary.\n\nWhen light enters from glass (a medium of less velocity; optically denser medium) into air (a medium of more velocity; optically rarer medium) no portion of light is refracted (do not enter into air) at certain angles of incidences. The whole portion of light is bounced back into glass\n\nThey are TOTALLY AND INTERNALLY reflected.\n\nThere is no change in velocity and therefore total ilnternal reflection is not refraction,
1136420
I think about the refraction of light.
687349
The basic idea for maximum reflectance is that the optical phase thickness, the refractive index times the physical thickness, is equal to one half the wavelength of light.  It could be this minimum thickness for the zero order effect, or some integer multiple of half the wavelength plus one half wavelength.\n\nThe minimum physical thickness of the oil film would be\n\nl = lambda/(2n) = 640/2.5 = 256 nm.\n\nSeems like a low index of refraction for oil, though.  There would also be a maximum reflection for this wavelength for 512, 768, ...\n\nThe condition for zero reflection is that the optical thickness is equal to one quarter wavelength.\n\nl = 512/(4n)= 102.4\n\nAlso, 512/(2n) + 102.4 = 307.4, 512/n + 102.4 = 512, and so forth.\n\nNow, 512 is sort of a blue-green color, but no matter.  Also the refractive index should depend on the wavelength.  But this cooked up problem has a solution for both wavelengths when \n\nl = 512 nm \n\nis the thickness of the oil film.  There are other correct answers, but this is the minimun thickness to meet the requirements of the two wavelengths given.
1085201
Total internal reflection. A diamond has a high index of refraction - about 2.418 - one of the highest among natural gemstones. Air, by contrast, has an index of refraction about 1. When a light ray enters one of the surfaces or facets of a diamond at any angle except directly perpendicular ("normal") to the surface, it is refracted (bent) toward the perpendicular (normal) to the surface.  The light ray continues to travel inside the diamond until it reaches another edge.\n\nHere is where it gets interesting.  If the angle that the light ray makes with that surface is large enough, the light ray cannot refract - bend enough - to exit the diamond. Instead, it is "totally internally reflected" and that light passes through the diamond to another edge (facet).  There, if the diamond is properly cut, it will exit the diamond, giving the diamond a sparkle as many rays of light entering from other directions are also totally internally reflected. \n\nOver the years, gem cutters have learned the proper angles that will maximize the total internal reflection - that is, trap as much light from as many different directions as possible and cause it to exit the diamond through other facets.