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The relationship is the following: the speed of light in an object is equal to the speed of light in a vacuum, divided by the material's index of refraction. Example: A certain glass has an index of refraction of about 1.5 (it depends a bit on the type of glass!). Since the speed of light in a vacuum is 300,000 km/sec., the speed of light in such glass is (300,000 km/sec) / 1.5 = 200,000 km/sec.
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoIt characterizes how much resistance the medium has to light that passes through it.
Wiki User
∙ 11y agoRefractive index of the medium is defined as the ratio of the velocity of light in vacuum to that in the medium. No unit for refractive index.
Wiki User
∙ 7y agoThe index of refraction is equal to (speed of light in empty space) divided by (speed of light in the medium).
Wiki User
∙ 6y agoThe speed of light in vacuum is denoted by c m/s. Its speed in a medium whose refractive index is r, is c/r metres/second.
Wiki User
∙ 11y agoThere are no properties.
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What will happen when two different medium of same refractive index?
The angle of incidence will equal the angle of refraction. If two medium have the same refractive index, light does not bend.
What does relative refractive index tells?
The relative refractive index tells the speed of light in a vaccum over the speed of light in medium.
In which medium will a lens behave as a glass slab?
the medium which have the same refractive index as glass.
What can you tell us about the refractive index?
"The refractive index is a measure of how much light bends or refracts when it is passed through a certain medium. The higher the numerical value of the refractive index, the more that light suffers from refraction."
When do light waves change speed?
speed of light is different for materials of different refractive index and also higher the refractive index lesser will be speed of light in that medium. so if light travels from rarer to denser medium (with respect to refractive index) then light waves will change their speed
What is refracting index of a medium?
Refractive index of the medium is defined as the ratio of the velocity of light in vacuum to that in the medium. No unit for refractive index.
The ratio of the speed of light in a medium to the speed of light in a vacuum is called its?
It is usually expressed the other way: the ratio of the speed of light in a vacuum to the speed of light in a medium. In that case, it is called the "index of refraction".
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)
How do you calculate speed of light wave with refractive index?
The speed of light in any medium isspeed of light in vacuum/refractive index of that medium.
What will happen when two different medium of same refractive index?
The angle of incidence will equal the angle of refraction. If two medium have the same refractive index, light does not bend.
What does relative refractive index tells?
The relative refractive index tells the speed of light in a vaccum over the speed of light in medium.
What indicates how much a medium can change the direction of light?
It is indicated by the refractive index of the medium.
In which medium will a lens behave as a glass slab?
the medium which have the same refractive index as glass.
What can you tell us about the refractive index?
"The refractive index is a measure of how much light bends or refracts when it is passed through a certain medium. The higher the numerical value of the refractive index, the more that light suffers from refraction."
If one medium is in kept in another medium of same refractive index - will it be visible?
No, if the refractive indexes of the two mediums are exactly identical it will be invisible.
When do light waves change speed?
speed of light is different for materials of different refractive index and also higher the refractive index lesser will be speed of light in that medium. so if light travels from rarer to denser medium (with respect to refractive index) then light waves will change their speed
What is the index of refraction?
The refractive index is the ratio of the speed of light in a vacuum to the speed of light in a medium.
