Optical fibres are generally composed of silica, which has a refractive index of 1.44. How
2 answers:
Answer:
from formula,
n = <u>speed</u><u> </u><u>of</u><u> </u><u>light</u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>
speed of light in medium
In Silica,
1.44 = (3e8m/s)/v
v= (3e8m/s)/1.44
v = 20.83e7m/s
v = 20.8 × 10^7m/s.
Light travels in silica at 20.8 × 10^7 m/s.
Answer:
2.08 x 108 m/s
The speed of light in this fiber is found to be v = c/n = (3.00 x 108 m/s)/(1.44) = 2.08 x 108 m/s.
Explanation:
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