Data transmitted along glass-fiber cables is in the form of pulses of monochromatic red light each of Duration 2.5 ns (nanosecond). Which of the following is the best estimate of the following number wavelengths in each pulse?
a. 10 power 3
b. 10 power 6
c. 10 power 9
d. 10 power 12
Answers: 1
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