γ
2
=
arcsin
(
n
0
sin
(
θ
−
γ
1
)
)
=
arcsin
(
1
,
658
×
sin
(
0
,
52
−
0
,
46
)
)
=
0
,
098
r
a
d
(
=
5
,
6
∘
)