Advertisements
Advertisements
Question
The speed of light in diamonds is 125,000 km s-1. What is its refractive index? (speed of light in air = 3 × 108 ms-1).
Solution
Given,
Speed of light in diamond, v = 125 × 106 m/s
Speed of light in air, c = 3 × 108 m/s
Refractive index of diamond, μ D = ?
We know that,
∴ `mu = c/v`
∴ µ =`(3xx10^8m//s)/(125xx10^6m//s)`
∴ µ =`(3xx10^2m//s)/125`
∴ µ = `300/125`
∴ µ = 2.4
RELATED QUESTIONS
Name two factors on which the refractive index of a medium depends. State how does it depend on the factors stated by you.
How does the refractive index of a medium depend on the wavelength of light used?
How does the refractive index of a medium depend on its temperature?
The refractive index of water with respect to air is aμw and of glass with respect to air is aμg. Express the refractive index of glass with respect to water.
The speed of light in diamonds is 125,000 km s-1. What is its refractive index? (speed of light in air = 3 × 108 ms-1).
Why do we use red colour as a danger signal on the top of a skyscraper?
Refer to the diagram given below. A lens with two different refractive indices is shown. If the rays are coming from a distant object, then how many images will be seen?
