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प्रश्न
State any two characteristics of the angle of contact
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उत्तर
Characteristics of the angle of contact:
a. The angle of contact is constant for a given liquid-solid pair.
b. The value of the angle of contact depends upon nature of liquid and solid in contact.
c. It depends upon the medium which exists above the free liquid surface.
d. The angle of contact changes due to impurity or temperature.
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