The friction factor in flow through a conduit is analogous to the drag coefficient in flow around submerged objects. Both parameters are used to quantify the resistance to flow due to friction in the respective systems.
Conclusion: The drag coefficient is the correct analogy as both represent the resistance to flow in their respective systems.
The Rayleigh scattering loss, which varies as ……… in a silica fiber.
The Rayleigh scattering loss, which varies as __________ in a silica fiber.