Q. 124.2( 5 Votes )

The speed of light in vacuum and in two different glasses is given in the table below:



(a) Calculate the absolute refractive indexes of flint glass and crown glass.

(b) Calculate the relative refractive index for light going from crown glass to flint glass.

Answer :

The relation between the angle of incidence and the angle of refraction for a medium is


Refractive indexes of flint glass = 1.61



Refractive indexes of crown glass = 1.52



The relative refractive index for light going from crown glass to flint glass = 1.059


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