Respuesta :

In order to solve this, we will use the formula

[tex]n=\frac{c}{v}[/tex]

where n is the index of infraction, c is the speed of light (3x10^8), and v is the medium in which the velocity is measured

solving for n,

n = (3x10^8)/(2.75x10^8) = 1.09

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