Question

(b) What is the speed of light in a medium of refractive index
6/5if its speed in air is 3 x10*8
m/s?
​

Answer 1

Step-by-step explanation:

The refractive index can be seen as the factor by which the speed and the wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength in that medium is λ = λ0/n, where λ0 is the wavelength of that light in vacuum.

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