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yah! i think.....
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Which instrument is used for precise measurement of refractive index?
Spectrometer
Properties of a ruby?
The chemical composition of ruby is aluminum oxide (Al 2 O3). Its specific gravity is 3.99 to 4.00 and refractive index range is 1.760-1.768 to 1.770-1.779. Ruby's hardness on Mohs scale is 9. It's the next hardest mineral after diamond.
What should be the base when 81 is written as a power of which the index is 2?
92 = 81
What is the index of refraction of a material if the angle of incidence in air is 50 degrees and the angle of refraction in the material is 40 degrees?
When a ray of light passes from material 1 to material 2: N1 sin θ1 = N2 sin θ2 where N1 & N2 are the refractive indices of the materials, and θ1 is the angle of incidence, θ2 the angle of refraction. From air to the material: N1 = 1.00, θ1 = 40°, θ2 = 50°, N2 = unknown, the index of refraction of the material: → 1.00 x sin 50° = N2 x sin 40° → N2 = 1.00 x sin 50° ÷ sin 40° → N2 ≈ 1.1917 (the index of refraction of the material)
Can the index of refraction ever be less than zero?
No. This would imply that the speed of light in that medium was greater than the speed of light in a vacuum, which is physically impossible according to the theory of relativity. The relative index of refraction can be negative... that is, the speed in the medium may be faster than the speed in the surrounding environment... but the absolute IR cannot be negative.
What is the function of core and cladding in an optic fibre?
in an optical fiber total internal reflection takes place between core and cladding. when core has greater refractive index than cladding. if n1=n2 then their is no TIR.
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 is the critical angle of a cladding?
The critical angle for the boundary between two materials (such as the core and cladding of an optical fibre) is: θc = arcsign(n2/n1) Where n2 is the refractive index of the cladding layer. and n1 is the refractive index of the core layer. If we use a simply unclad fibre where the core has n1=1.50 and the air surrounding it forms a layer of n2=1.00 θc = 41.8 degrees.
What are the applications for single mode fibers?
Hi, Single mode fiber is used to send the data from transmitter to receiver or repeater. In single mode we can only send single signal at a time and hence it is single mode. The Single mode fiber will have core and cladding arranged in such a way that the core has got one refractive index and the cladding has got another refractive index which will be constant through out the fiber.
What is the standart refractive index of cyclohexene?
Refractive Index: 1.4465
What is the refractive index of diamonds?
Refractive Index: 2.4175-2.4178
What is the refractive index of vacuum?
Refractive index of vacuum is 1.
The refractive index of water is 43 and for glass it is 32 with respect to airwhat is the refractive index of glass with respect to air?
"The refractive index of water is 4 / 3" means the refractive index of water with respect to air. "The refractive index of glass is 3 /2" means the refractive index of glass with respect to air. You change the question as ," what is the refractive index of glass with respect to water? The answer is it is the ratio of refractive index of of glass with respect to air to the refractive index of water with respect to air =( 3/2) divided by( 4/3) = 1.125
What is the unit of molecular refractive index?
I assume "molecular refractive index" refers to "the refractive index of a group of molecules". In this case, you just use the units for a refractive index - i.e., a dimensionless number.
Light travels slower in a material with greater what?
Light travels slower in a material with greater optical density.
What is the refractive index of kerosene?
The absolute refractive index of kerosene is 1.39 .
How calcualate the refractive index of petrol?
The refractive index is determined experimentally.
