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A ray of light is incident at an angle o
Question
A ray of light is incident at an angle of 60
∘
on one of the faces of a prism which has an angle of 30
∘
. The ray emerging out of prism makes an angle of 30
∘
with the incident ray. The refractive index of material is
A
1
.
1
B
1
.
3
3
C
1
.
5
D
1
.
7
3
2
Medium
Open in App
Updated on : 2022-09-05
Solution
Verified by Toppr
Correct option is D)
δ
=
3
0
∘
A
=
3
0
∘
i
1
=
6
0
∘
δ
=
(
i
1
+
i
2
)
−
A
3
0
=
6
0
+
i
2
−
3
0
⇒
i
2
=
0
⇒
r
2
=
0
r
1
=
3
0
μ
×
s
i
n
r
1
=
s
i
n
i
μ
×
2
1
=
2
3
μ
=
1
.
7
3
2
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