A low wettability angle indicates the surface is hydrophilic.

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Multiple Choice

A low wettability angle indicates the surface is hydrophilic.

Explanation:
Wettability is determined by the contact angle a water drop makes with a surface. A low contact angle means water spreads out and wets the surface easily, which is the telltale sign of a hydrophilic surface. So, when the angle is low, the surface is hydrophilic. If the angle were high, water would bead up, indicating a hydrophobic surface. Therefore, the statement is correct: a low wettability angle indicates hydrophilic.

Wettability is determined by the contact angle a water drop makes with a surface. A low contact angle means water spreads out and wets the surface easily, which is the telltale sign of a hydrophilic surface. So, when the angle is low, the surface is hydrophilic. If the angle were high, water would bead up, indicating a hydrophobic surface. Therefore, the statement is correct: a low wettability angle indicates hydrophilic.

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