Numerical - Bandwidth length product

Q.  Assuming no ISI, the maximum possible bandwidth of a multimode graded index fiber with 5 MHz, shows the total pulse broadening of 0.1s for the distance of about 12km. What would be the value of bandwidth length product?
- Published on 21 Nov 15

a. 40 MHz
b. 60 MHz
c. 90 MHz
d. 120 MHz

ANSWER: 60 MHz

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