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Do impurities raise or lower the refractive index of a substance?
Wiki User
∙ 9y ago
Impurities can cause a significant change in the reflective index of a liquid. Impurities totally affect the results of the experiment. It changes the reflective index and affect the concentration of the solution.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agolower
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Why the refractive index of ice is lower than that of water?
The refractive index of a certain material increases with its density. The refractive index of ice is less because it has a lower density than liquid water.
Why do impurities lower the boiling point of a pure substance?
The presence of the impurities will cause the boiling points to rise (also the melting points to fall). When you add the impurities, the substance doesn't remain pure affecting the boiling point to increase because now, more energy is required to boil the liquid with impurities. The melting points fall because impure substances require less energy to separate the particles.
Why do impurities lower evaporation rate of water?
because it blocks water from evaporating
Is the melting point of impure water lower or higher than freezing point?
The boiling Point of impure water is 100 degrees celsius
Who has higher melting point Pure or Impure Substance?
The melting point of an impure compound is almost *always* lower than that of a pure compound.
What color of light has the highest refractive index?
The refractive index is inversely proportional to the wavelength, so the shorter the wavelength (the higher the frequency, or the more "blue" the light) the higher the refractive index. Conversely, the longer the wavelength (the lower the frequency, or the more "red" the light), the lower the refractive index. Therefore as wavelength of blue in less the refractive index will be maximum. For more information, follow the related link below.
Why the refractive index of ice is lower than that of water?
The refractive index of a certain material increases with its density. The refractive index of ice is less because it has a lower density than liquid water.
What is the Nature of a convex lens immersed in a liquid with refractive index greater than of glass?
Usually a convex lens made up a material with higher refractive index would act as a converging device when kept in a medium having lower refractive index such as air. But when it is kept in a liquid as said with higher refractive index then convex lens would become as a concave lens. Now it would diverge the rays entering through it right from the liquid with higher refractive index.
What is the normal dispersion of the refractive indices?
In which the index of refraction is higher for short wavelengths and lower for long wavelengths.
What is an angle of refraction?
If a beam of light enters a substance with a higher density than air and at an angle, the light is refracted so that an object on the far side of the substance appears to be closer to the observer. If the density of the substance is lower than that of air, the light is refracted away from the observer and the object being viewed appears to be farther away.
What is the value of the index of refraction of a medium means?
Refractive index value of a medium - when it is higher then the speed of light in that medium would become lower. In case of water it travels faster compared to that in glass. In case of diamond the speed is further reduced. Since the refractive index is inversely related to the speed of light in the medium.
How does the speed of light in glass compare to the speed of light in a vacuum?
It will depend on the type of glass, and something called its refractive index. All materials have a refractive index which will effect the speed of the light through it. The speed of light through a vacuum is 3.0x10^8 m/s, and a material such as glass will be lower than this.
Does light slow down when it passes through glass and also emerge at a lower speed?
Light travels slower in glass based on its refractive index of 1.5.
If a substance is impure what will be the two effects on its melting point compared to the literature value?
the impurities will lower the melting point value.
What is the difference between step index and graded index optical fiber?
1. Step index fiber is of two types viz; mono mode fiber and multi mode fiber. Graded index fiber is of only of one type that is multi mode fiber. 2. The refractive index of the core of the step index fiber is constant through out the core. The refractive index of the core of the graded index fiber is maximum at the center of the core and then it decreases towards core-cladding interface. 3. Number of modes for step index fiber N = V2/2, where V is cut off frequency or normalized frequency or V- number Number of modes for graded index fiber is N = V2/ 4. 4. V number can be less that 2.405 or more that 2.405 for step index fiber V number is always more than 2.405 for graded index fiber. 5. Step Index Fiber is a fiber in which the core is of a uniform refractive index and there is a sharp decrease in the index of refraction at the cladding. Graded Index Fiber is a type of fiber where the refractive index of the core is lower toward the outside of the fiber. It bends the rays inward and also allows them to travel faster in the lower index of refraction region. This type of fiber provides high bandwidth capabilities.
Why refractive index of core is lower than cladding in optlical fiber?
because in the fiber optics the transmission of the light waves are through core and cladding is to cover the core
What happens when speed of light enters a new kind of medium?
When light passes from one medium to another with a different refractive index, andnot in a direction perpendicular to the boundary between the media, its speed changes.
