Consider a single mode fiber having core refractive index n1= 1.5. The fiber length is 12m. Find the time taken by the axial ray to travel along the fiber.a.0.06μsecb.0.30μsecc.0.90μsecd.1.00μsec
Question
Consider a single mode fiber having core refractive index n1= 1.5. The fiber length is 12m. Find the time taken by the axial ray to travel along the fiber.a.0.06μsecb.0.30μsecc.0.90μsecd.1.00μsec
Solution
The time taken by the axial ray to travel along the fiber can be calculated using the formula:
t = L / (c/n)
where:
- t is the time taken
- L is the length of the fiber
- c is the speed of light in vacuum
- n is the refractive index of the fiber
Given:
- L = 12m
- n = 1.5
- c = 3 x 10^8 m/s
Substituting these values into the formula, we get:
t = 12m / (3 x 10^8 m/s / 1.5) = 0.06 μsec
So, the correct answer is a. 0.06 μsec.
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