Speed of light in glass is 2X108m/s and its refractive index is 1.5. What is the speed of light in medium whose refractive index is 4/3.
Answers
Answered by
2
Answer:
The Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or n = c/v.
Here c= Speed of light in a vacuum
n = index of refraction
v = Velocity of light in the medium
So the speed of light in glass medium is 2 X 108 m/s ... Therefore the value of v = 2X 108m/s
Refractive index of glass = 1.5 ... Therefore the value of n = 1.5
The speed of light is always constant in the world and therefore
c = 3 X 10^8
Now if we change the refractive index to 4/3 Therefore the value of n changes to 4/3
n= c/v
4/3 = 3 X 10^8 / v
v= 225000000
Similar questions
English,
4 months ago
English,
4 months ago
India Languages,
4 months ago
Math,
10 months ago
Math,
10 months ago
India Languages,
1 year ago
World Languages,
1 year ago