Which property of the coating on fiber-optic strands makes light visible only at the ends of the strands?

a reflectivity
b absorbency
c transparency
d translucency

Answer;

A. reflectivity

Explanation;

Cladding is the glass material surrounding the fiber core. This glass has a lower refractive index and reflects the light back into the core, thus maintaining the light level over a long distance.An optical coating is composed of a combination of thin film layers that create interference effects used to enhance transmission or reflection properties within an optical system.

Ithink d is the right answer. hope this !