The reflective index numberis
a. anumberwhichcomparesthe transparencyof amaterialwiththatof air b. a number assigned by the manufacturer to the fiber in question
c. a number which determines the core diameter
d. a term for describing core elasticity
a. anumberwhichcomparesthe transparencyof amaterialwiththatof air b. a number assigned by the manufacturer to the fiber in question
c. a number which determines the core diameter
d. a term for describing core elasticity