Contact Angle Measurement Diagram - Surface Wettability Analysis #238251 (License: Personal Use)

This diagram illustrates the contact angle formed where a liquid droplet meets a solid surface, a key parameter in assessing wettability. The blue dashed arc represents the tangent line used to measure the angle, while the horizontal ruler provides scale reference. The gradient shading highlights surface tension effects and internal curvature of the droplet.

Used in materials science, coatings, and microfluidics education or documentation to explain hydrophobicity/hydrophilicity; supports user intent to understand surface-liquid interaction principles.