The required value of the index of refraction of glass is 1.5.
Given data:
The speed of light in a vacuum is, [tex]c = 3.0 \times 10^{8} \;\rm m/s[/tex].
The speed of light in a glass is, [tex]v = 2.0 \times 10^{8} \;\rm m/s[/tex].
Light has the tendency to travel from one medium to another, then the difference between the speeds of light in various mediums is determined by a term, known as the index of refraction. The mathematical expression for the index of refraction of glass is,
n = c / v
Solving as
[tex]n = \dfrac{3.0 \times 10^{8}}{2.0 \times 10^{8}}\\\\n = 1.5[/tex]
Thus, we can conclude that the required value of the index of refraction of glass is 1.5.
Learn more about the index of refraction here:
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