Index of Refraction
To determine the index of refraction, we will use the formula:
[tex]n = \frac{c}{v} [/tex]
where:
n = the index of refraction
c = the speed of light in vacuum
v = the speed of light in material
Answer
1.
Given
c = 3 x 10⁸ m/s
v = 2.2 x 10⁸ m/s
n = ?
Solve
[tex]n = \frac{c}{v} \\ n = \frac{3 \times {10}^{8}\:m/s}{2.2 \times {10}^{8}\:m/s} \\ n = 1.4 \times {10}^{8}\:m/s[/tex]
∴ The index of refraction is 1.4 x 10⁸ m/s.
