A multimode fiber has refractive indices n1 = 1.15, n2 = 1.11 and an operating wavelength of 0.7 m. Find the radius of curvature?

A multimode fiber has refractive indices n1 = 1.15, n2 = 1.11 and an o

1.	A multimode fiber has refractive indices n1 = 1.15, n2 = 1.11 and an operating wavelength of 0.7 m. Find the radius of curvature?
A.	8.60 <sub>m</sub>
B.	9.30 <sub>m</sub>
C.	9.1 <sub>m</sub>
D.	10.2 <sub>m</sub>
Answer» C. 9.1 <sub>m</sub>