Modal dispersion is caused by the
∙ a. Dependence of wavelength on index of refraction  
∙ b. Dependence of propagation constant on index of refraction  
∙ c. Dependence of the propagation constant on the wavelength  
∙ d. Dependence of the propagation constant on the mode number

1 Answer

Answer :

d. Dependence of the propagation constant on the mode number

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