Refractive Index Refraction is caused by the light changing speed. Different substances affect the light speed, c, by different amounts. Every substance has its own value for the refractive index, n. The refractive Index, n, is given by, C₁ speed of light in vacuum speed of light in medium C₂ Some values of n for different substances are given below = 1.50 diamond = 1.45 noll 1. 2. plastic 3. a. n= b. alcohol nglass C. = 1.36 = 1.52 The speed of light in chloroform is c₂= 2.0x10 ms¹. Calculate the refractive index value, n, for chloroform. (Use the value of c, from the Data page.) a. In which transparent substance does light travel the slowest? b. In which substance' does light travel the fastest? Calculate the speed of light, C₂, in glass. = Calculate the speed of light in water. nwater Calculate the speed of light in diamond. = 2.41 = 1.33 مورد dense medium

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Refractive Index
Refraction is caused by the light changing speed. Different
substances affect the light speed, c, by different amounts. Every
substance has its own value for the refractive index, n.
The refractive index, n, is given by,
CH
speed of light in vacuum
speed of light in medium
C₂
Some values of n for different substances are given below
=1.36
= 1.52
n
1.
2.
3.
plastic
a.
b.
a
1.50
= 1.45
b.
1
alcohol
glass
The speed of light in chloroform is c₂ 2.0x10⁰ ms. Calculate the
refractive index value, n, for chloroform. (Use the value of c, from the
Data page.)
1
Calculate the speed of light, c,, in glass.
H
Calculate the speed of light in water.
diamond
nwater
In which transparent substance does light travel the slowest?
In which substance' does light travel the fastest?
Calculate the speed of light in diamond.
= 2.41
<= 1.33
dense medium
Transcribed Image Text:Refractive Index Refraction is caused by the light changing speed. Different substances affect the light speed, c, by different amounts. Every substance has its own value for the refractive index, n. The refractive index, n, is given by, CH speed of light in vacuum speed of light in medium C₂ Some values of n for different substances are given below =1.36 = 1.52 n 1. 2. 3. plastic a. b. a 1.50 = 1.45 b. 1 alcohol glass The speed of light in chloroform is c₂ 2.0x10⁰ ms. Calculate the refractive index value, n, for chloroform. (Use the value of c, from the Data page.) 1 Calculate the speed of light, c,, in glass. H Calculate the speed of light in water. diamond nwater In which transparent substance does light travel the slowest? In which substance' does light travel the fastest? Calculate the speed of light in diamond. = 2.41 <= 1.33 dense medium
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