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Question
Physics
The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refractive index n), is
Q. The angle of incidence at which reflected light is totally polarized for reflection from air to glass (refractive index n), is
3493
228
Jamia
Jamia 2007
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A
sin
−
1
(
n
)
B
sin
−
1
(
1/
n
)
C
tan
−
1
(
1/
n
)
D
tan
−
1
(
n
)
Solution:
The particular angle of incidence for which reflected light is totally polarized for reflection from air to glass, is called the angle of polarisation
(
i
p
)
(Brewsters law). Accordingly,
n
=
t
an
i
p
⇒
i
p
=
tan
−
1
(
n
)
where
n
=
refractive index of glass.