then we wouldn't be able to identify from air and glass at all, since light would pass through glass without deflecting at all!!
No, oil does not have the same refractive index as glass. Glass typically has a higher refractive index than most oils. This difference in refractive index is what causes light to bend or change direction when it passes from one medium (like oil) to another (like glass).
Everything a lens does is the result of the change of refractive index at its surface.If the lens is surrounded by a medium with the same refractive index as the glass,then there is no refraction (bending) of light at the glass surface, and the lens is nolonger a lens. If you could find such a liquid, you might not even be able to see thatthere's a lens down there in it.
When light passes from one substance to another, and both have the same refractive index, then there will be no refraction - or change of direction - at the border. It is as if there were only one substance.
When light passes from one medium to another with the same refractive index, there is no change in the speed of light, and the light does not bend or refract. This causes the light to pass through without changing direction, making the irregularly shaped glass appear invisible when immersed in the liquid of the same refractive index.
1Ideally speaking, the ratio of the sines of the angles of incidence and refraction will be the same if the medium is the same. So the refractive index will be 1.However, refractive index is, again, a relative value. If we say that the refractive index of glass is 1.5, it implies that the refractive index of glass, with respect to air is 1.5. So the value might change based on the media involved in refraction.It can also be safely concluded, without much Physics, that any multiplicative quantity for the standard element will be 1. (ex: speed of sound is Mach 1)
No, oil does not have the same refractive index as glass. Glass typically has a higher refractive index than most oils. This difference in refractive index is what causes light to bend or change direction when it passes from one medium (like oil) to another (like glass).
No.
Everything a lens does is the result of the change of refractive index at its surface.If the lens is surrounded by a medium with the same refractive index as the glass,then there is no refraction (bending) of light at the glass surface, and the lens is nolonger a lens. If you could find such a liquid, you might not even be able to see thatthere's a lens down there in it.
Refractive index and density are the two most important physical properties of glass for forensic comparisons. Refractive index measures how light is bent as it passes through the glass and can help determine if glass samples are from the same source. Density can also be used to compare glass samples as it is unique to the composition of the glass.
When light passes from one substance to another, and both have the same refractive index, then there will be no refraction - or change of direction - at the border. It is as if there were only one substance.
When light passes from one medium to another with the same refractive index, there is no change in the speed of light, and the light does not bend or refract. This causes the light to pass through without changing direction, making the irregularly shaped glass appear invisible when immersed in the liquid of the same refractive index.
The refractive index and refractive power are both directly proportional becausedue to power the distance is decrease or increase if power increases or decreasesand to refractive index the bending of light occurs in towards or away. Bending oflight ray and distance of light ray are directly proportional so refractive index andpower are directly proportional.==========================Answer #2:They have very little connection, except that the same big word appears in both terms.Refractive index of a substance is the ratio of the speed of light in vacuum to thespeed of light in that substance.Refractive power of an optical device, like a lens, does naturally depend somewhaton the refractive index of the material used to make the lens, but it's got muchmore to do with the shape of the lens ... the curvature of its surfaces etc.You can make lenses with a wide range of different refractive powers, all out ofthe same kind of glass with the same refractive index. And you can constructlenses that all have the same refractive power out of many many differentsubstances with different refractive indexes, like crown glass, flint glass, plastic,jello etc. So in that sense, the two are completely unrelated.
Glycerin is a clear, colorless liquid with a high refractive index, which means it bends light strongly. When glycerin is in a glass bottle, light passes through the liquid and glass without being scattered, resulting in glycerin being virtually invisible.
1Ideally speaking, the ratio of the sines of the angles of incidence and refraction will be the same if the medium is the same. So the refractive index will be 1.However, refractive index is, again, a relative value. If we say that the refractive index of glass is 1.5, it implies that the refractive index of glass, with respect to air is 1.5. So the value might change based on the media involved in refraction.It can also be safely concluded, without much Physics, that any multiplicative quantity for the standard element will be 1. (ex: speed of sound is Mach 1)
Good question. This is the basis of a simple test used to identify various transparent items. In a test apparatus, one would be provided with a number of fluids each with a known and different refractive index. Thus when your sample (a headlight glass splinter for example) is put in the appropriate fluid, it will appear to disappear.
Lenses operate on having another index than the immediate surrounding. Sink a lens in a media with the same index and it won't work. It'll be like it's all glass.
The "nature" of it is the same as if it weren't immersed. However, if it has the same refractive index as the material it's immersed in, it will no longer have any discernable effect on the refraction of light; from the outside it will appear to just be another part of the liquid (it may well disappear from sight, since it's no longer visually distinguishable from the liquid itself).