Answer: The refractive index of the unknown medium is 1.5
Explanation:
To calculate the refractive index of the medium, we use the equation:
[tex]\eta=\frac{c}{v}[/tex]
where,
[tex]\eta[/tex] = refractive index of medium = ?
c = speed of light in air = [tex]3.00\times 10^8m/s[/tex]
v = speed of light in medium = [tex]2.00\times 10^8m/s[/tex]
Putting values in above equation, we get:
[tex]\eta =\frac{3.00\times 10^8m/s}{2.00\times 10^8m/s}\\\\\eta=1.5[/tex]
Hence, the refractive index of the unknown medium is 1.5