Use the Following Figure Below for the Next Problem $\theta$ ,So That the Light Ray Is Totally Internally Reflected Inside

question 6

Multiple Choice

Use the following figure below for the next problem.
The figure shows a cross-
-A fiber optic is made by cladding a thin fiber core of refractive index n₁ = 1.45 with a material of refractive index n₂ = 1.38.What is the maximum incident angle, $\theta$ ,so that the light ray is totally internally reflected inside the fiber?

• A)24.1º
• B)26.4º
• C)28.2º
• D)30.3º
• E)32.7º

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