a parallel beam of light passing on a glass slab at an angle of incidence 60° and suffers reflection as well as refraction. the refractive index of gas is √3. the ratio of widths of reflected and refracted beams is
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Answer:
PHYSICS
A ray of light is incident at an angle i on a glass slab of refractive index μ. The angle between reflected and refracted light is 90
o
. Then the relationship between i and μ is.
December 26, 2019avatar
Jenny Pàgarē
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ANSWER
Let the angle of reflection and refraction be r
1
,r
2
respectively.
Since angle between reflected and refracted ray is 90
∘
,
r
1
+r
2
=90
∘
.
From law of reflection, r
1
=i
From Snell's law,
sini=μsinr
2
=μsin(90
∘
−r
1
)
=μcosr
1
=μcosi
⟹tani=μ
hope it helps you pls mark me as brainlist answer I will help u whenever u need help I m a teacher and the answer is correct
Answer:
A ray of light is incident at an angle i on a glass slab of refractive index μ. The angle between reflected and refracted light is 90
o
. Then the relationship between i and μ is.
December 26, 2019avatar
Jenny Pàgarē
SHARE
ANSWER
Let the angle of reflection and refraction be r
1
,r
2
respectively.
Since angle between reflected and refracted ray is 90
∘
,
r
1
+r
2
=90
∘
.
From law of reflection, r
1
=i
From Snell's law,
sini=μsinr
2
=μsin(90
∘
−r
1
)
=μcosr
1
=μcosi
⟹tani=μ
hope it helps you pls mark me as brainlist answer I will help u whenever u need help I m a teacher and the answer is correct
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