Question

pls solve its urgent
I will mark as brainlist​

Answer 1

Answer:

1.71

Explanation:

Nyx =  refractive index. X / refractive index. Y = 1.4

refractive index.Y = refractive index. X / 1.4

Nzy = refractive index. X / refractive index. Z = 2.4

refractive index.Z = refractive index. X / 2.4

Therefore,

refractive index. Y / refractive index. Z = refractive index. X / 1.4 ÷ refractive index. X / 2.4

= 2.4/1.4 = 1.71