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Which outcome from elevated liquid viscosity occurs within microfluidic droplet generators?

A)Smaller droplet size uniformity declines
B)Increased Laplace pressure resists breakup
C)Increased interfacial tension eases dripping
D)Reduced Rayleigh instability dominates pinching

💡 Explanation

Increased viscosity elevates internal friction resisting droplet pinch-off; therefore smaller droplet size suffers, because reduced stresses are less able to overcome viscous shear within the generated droplets, rather than interfacial tensions causing increased issues at lower viscosities.

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