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Sagot :
The angle relative to the normal interface of the two liquids at which the light is totally reflected is 78 degrees.
What is Snell's law?
The incident rays' landing point and the angle it forms with the refracted ray—not to mention the normal line that is dropped on the plane perpendicularly—create the point of refraction. In contrast to reflection, the medium through which the light rays are flowing produces a significant change in refraction. The refractive indices highlight Snell's Law's dependence on the medium.
Snell's Law, also referred to as the Law of Refraction, is an equation that connects the angles of incident and transmitted light at the meeting point of two dissimilar media. All materials and phases of matter are subject to Snell's Law.
the refractive index of the ethyl alcohol =1.361
the refractive index of the water =1.333
According to Snell's Law of refraction;
Ф=78
Therefore, we can conclude that the angle relative to the normal interface of the two liquids at which the light is totally reflected is 78 degrees.
Learn more about Snell's Law from given link
https://brainly.com/question/22266487
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