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The techniques used to determine the refractive index profile can also be used to determine the core diameter.

The techniques used to determine the refractive index profile can also be used to determine the core diameter. Correct Answer True

Some of the techniques used to determine the refractive index profile are interferometry, near field scanning and refracted ray technique. The core diameter for step index fibers is defined by the step change in the refractive index profile. Hence, they can be used to measure the core diameter.

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