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Wiki User
∙ 11y ago
Wiki User
∙ 13y agoIt depends on the type of glass you have, for example Crown glass has an index of 1.50 unlike the Flint glass which has an index of 1.91. It's all about the glass.
Wiki User
∙ 14y agorefractive index of flint glass is 1.65
Wiki User
∙ 11y ago1.46
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Differences between relative refractive index and absoulate refractive index?
Refractive Index(i) Refractive index of a medium is that characteristic which decides speed of light in it.(ii) It is a scalar, unit less and dimensionless quantity.(iii) Absolute refractive index :When light travels from vacuum to any transparent medium then refractive index of medium w.r.t. vacuum is called it's absolute refractive index i.e. vacuumµmedium = c/vAbsolute refractive indices for glass, water and diamond are respectively µg = 3/2 = 1.5, µw = 4/3 = 1.33 and µD = 12/5 = 2.4(iv) Relative refractive index :When light travels from medium (1) to medium (2) then refractive index of medium (2) w.r.t. medium (1) is called it's relative refractive index i.e. 1µ2 = µ2/µ1 = v1/v2 (where v1 and v2 are the speed of light in medium 1 and 2 respectively).(v) When we say refractive index we mean absolute refractive index.(vi) The minimum value of absolute refractive index is 1. For air it is very near to 1. ( 1.003)
Describe an experiment to find the refractive index of a glass block?
You can investigate fraction in glass using a rectangular glass block. By tracing the rays of light on a piece of paper, you can measure the angles of incidence (i) and refraction (r). If you repeat this process for a range of different angles of incidence, you would find that the sine of the angle of incidence and the sine of the angle of refraction are constant. This ratio is called the refractive index of the material, and is given the letter n.The angles of incidence and refraction are related by the following equation:sin in=__________sin r
Is it possible to have total internal reflection of light incident from air to glass?
If you mean that the light is in the glass, and the air is on the "outside", then yes. The other way it isn't possible; for total internal reflection, the material through which light travels must needs have a higher refractive index.
Why blue light bends more than red in a prism?
In white light various colors of light are mixed together, primarily blue yellow and red. When white light in air passes through a glass prism having a certain refractive index, all the differently colored lights have the same angle of incidence (θ) but each differently colored light has a different emergent angle of refraction, going from red light (at the minimum angle) to blue light (having the maximum angle).According to the refractive index formula n = sin θ ／ sin γ, where n is the refractive index of the prism, sin θ is the sine of the angle of incidence (θ) and sin γ is the sine of the angle of refraction (γ).I believe that is just a different way of describing the effect, not an explanation. Red light in glass travels at a lower speed than in air or vacuum. So when a wavefront hits a flat surface of glass at an angle, the end of the wave front inside the glass travels more slowly than the part of the wavefront that has not yet entered the glass. But the wave front must still be continuous all along its length, and the only way to achieve that is if the wavefront inside the glass proceeds in a tilted direction. The slower the light in the glass, the bigger the change in angle. Green light in glass travels faster than red and slower than blue. So the different colors are spread into different angles of refraction.
Why is white light dispersed by a glass prism?
When white light(composite light) consisting of various colors is passed through a prism, light of different colors will be deviated through different angles. Since the deviation is related to refractive index and refractive index to the color of light the deviation produced for different colors are different for same prism.That is the refractive indices are different for the various colors and this difference in the refractive indices is responsible for dispersion.
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
Which substance is used to increase the refractive index of glass?
Lead monoxide is used to increase the refractive index of glass.
Refractive index of a glass slab using a travelling microscope?
To find the refractive index of a glass slab using a travelling microscope, you would first place the glass slab on a flat surface. Using the travelling microscope, measure the apparent shift in the position of the object when viewed through the glass slab. By knowing the thickness of the glass slab and the shift in the position, you can calculate the refractive index using the formula: Refractive index (n) = (apparent shift + 1) / actual shift.
Discussion of reflactive index of glass and water?
Refractive Index of water=1.333 Refractive Index of Sea water=1.343
Why air bubble in a glass slab have silvery look?
refractive index of glass is higher than refractive index of glass slab OR density of air is less than density of glass
What is the refractive index of a rectanguler glass block?
1.5
Is the refractive index of glass the same for all colours of light?
No.
Why Glycerin is not visible when kept in Glass bottle?
Because it has the same refractive index as glass.
In which medium will a lens behave as a glass slab?
the medium which have the same refractive index as glass.
How is the refractive index of glass is to water is related with that of air is to water?
Each substance has an index of refraction. The index of refraction of water is about 1.3330 . The index of refraction of air at standard conditions is about 1.0003 . There is no such thing as the index of refraction of "water to air".
Does refractive index vary with colour of light?
Yes refractive index of the material of the medium [glass] with respect to air is high for violet and low for red.
What happens if the refractive index of glass equals to the refractive index of air briefly?
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.
