What is the speed of light in glass when the index of refraction is 1.5?
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heya !!
>YOUR ANSWER IS GIVEN IN THE PIC ABOVE AND THE FORMULA USED IS :
>REFRACTIVE INDEX= SPEED OF LIGHT IN AIR / SPEED OF LIGHT IN GLASS .
>HENCE , PUT THE VALUES AND YOUR ANSWER WILL BE : 2×10^8 m/s.
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i hope it helps u !!☺
>YOUR ANSWER IS GIVEN IN THE PIC ABOVE AND THE FORMULA USED IS :
>REFRACTIVE INDEX= SPEED OF LIGHT IN AIR / SPEED OF LIGHT IN GLASS .
>HENCE , PUT THE VALUES AND YOUR ANSWER WILL BE : 2×10^8 m/s.
◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆
i hope it helps u !!☺
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Refractive index is a physical quantity which simply means the strength of medium upto which extent it can bend the light when it travels in it...For different medium , Bending is different...So Medium like glass , water , Oil etc..which can trasmit the light...have refractive index...
Refractive index of a medium cab be calculated by taking the Ratio of velocities of light in Air (Vaccum) and in any transmitting medium...
Velocity and Speed can be used interchangebly only if light travel in a straight path...
Velocity of light is maximum in Vaccum( a free space without air)...Air is a trasparent medium...when light enters from Vacuum( free Space ) its velocity decreseses a bit...The velocity of light in vaccume and air is considered as approximately same...The magnitude of Velocity of light in vaccume is 3 x 10^8 (raised to the power 8) m/s....
Refractive index of a Medium
= Velocity of light in air : Velocity of light in Medium
=Velocity of light in air / Velocity of light in Medium
As It is the ratio of velocities so units gets cancelled out...Thus refractive has no unit...Refractive index simply a number without unit...which actually comparision between two velocities in two diffrent media...
Refractive index is always greater than 1 ...to Know about this thing... you can check this in my profile in answer of science section...for Solution see snap...
In snap you will see the length of numerical...it is not long as it look...I just show you how it come simply using Equation concepts...You can directly use formula and calculate refractive index in few steps.......
hope this help...
Refractive index of a medium cab be calculated by taking the Ratio of velocities of light in Air (Vaccum) and in any transmitting medium...
Velocity and Speed can be used interchangebly only if light travel in a straight path...
Velocity of light is maximum in Vaccum( a free space without air)...Air is a trasparent medium...when light enters from Vacuum( free Space ) its velocity decreseses a bit...The velocity of light in vaccume and air is considered as approximately same...The magnitude of Velocity of light in vaccume is 3 x 10^8 (raised to the power 8) m/s....
Refractive index of a Medium
= Velocity of light in air : Velocity of light in Medium
=Velocity of light in air / Velocity of light in Medium
As It is the ratio of velocities so units gets cancelled out...Thus refractive has no unit...Refractive index simply a number without unit...which actually comparision between two velocities in two diffrent media...
Refractive index is always greater than 1 ...to Know about this thing... you can check this in my profile in answer of science section...for Solution see snap...
In snap you will see the length of numerical...it is not long as it look...I just show you how it come simply using Equation concepts...You can directly use formula and calculate refractive index in few steps.......
hope this help...
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