Дано:
α = 40*
n = 1,33
φ - ?
n = sin α / sin β, sin β = sin α / n = sin 40* / 1.33 = 0.4833, β = 29*
φ = 180* - α - β = 180* - 40* - 29* = 111*
Дано:
α = 40*
n = 1,33
φ - ?
n = sin α / sin β, sin β = sin α / n = sin 40* / 1.33 = 0.4833, β = 29*
φ = 180* - α - β = 180* - 40* - 29* = 111*