Light is incident along the normal on face AB of a glass prism of refractive index 1.61. What is the largest value the angle a can have without having any light reflected out of the prism at face AC if the prism is immersed in oil (noil = 1.47)? Incident ray B -C A. 24° С. 39° В. 29° D. 66°

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Light is incident along the normal
on face AB of a glass prism of refractive index 1.61. What is
the largest value the angle a can have without having any light
reflected out of the prism at face AC if the prism is immersed in
oil (noil = 1.47)?
A
Incident
ray
B
a
A. 24°
С. 39°
В. 29°
D. 66°
Transcribed Image Text:Light is incident along the normal on face AB of a glass prism of refractive index 1.61. What is the largest value the angle a can have without having any light reflected out of the prism at face AC if the prism is immersed in oil (noil = 1.47)? A Incident ray B a A. 24° С. 39° В. 29° D. 66°
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