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Byju's Answer
Standard X
Physics
Multiple Glass Slabs with Different R.I
A ray from me...
Question
A ray from medium 1 is refracted below while passing to medium 2. Find the refractive index of the second medium with respect to medium 1.
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Solution
From the given figure it is clear that
angle of incidence,
i
=
30
∘
angle of refraction,
r
=
45
∘
Refractive index of medium 2 with respect to medium 1 =
1
μ
2
Applying snell's Law, we get
μ
1
sin
i
=
μ
2
sin
r
⟹
μ
1
sin
(
30
∘
)
=
μ
2
sin
(
45
∘
)
⟹
μ
1
×
1
2
=
μ
2
×
1
√
2
⟹
μ
2
μ
1
=
√
2
2
⟹
μ
2
μ
1
=
0.707
Hence the refractive index of the second medium with respect to medium 1 is 0.707.
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