Question

what is the answer please? ​

Answer 1

Answer:

μ.²= 3

Step-by-step explanation:

$n \: = \frac{ \sin(i) }{\sin(r) }$

n is refractive index μ

μ = sin 60°/sin 30°

= √3/2 ×2/1

= √3

μ² = 3