Question

Problem 26.98 13 of 14> Part B Review What is the maximum angle 0, at which rays can enter the fiber from air as shown and undergo total internal reflection? Suppose the fiber depicted in (Figure 1) has an index of refraction of 1.62 and its Express your answer to three significant figures and include appropriate units. curved surface is surrounded by a cladding material with an index of refraction of 1.53 32.2 Correct Part C Figure If the diameter of the fiber core is 7.00 m, how many reflections per meter does the ray undergo when it arrives at the boundary at the critical angle? 1 of 1 Express your answer to three significant figures and include appropriate units. alue Units Submit t Answer

Answer 1

C)

Number of reflection, N = L/ R tan(theta)

N = 1/ 7 x 10^-6 x tan70.81 = 49714.96 ​​​​​​

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