$A$ liquid wets a solid completely. The meniscus of the liquid in a sufficiently long tube is

$A$ hydrophilic surface is characterised by the contact angle at the water-solid interface. The value of the contact angle should be:

The angle of contact is $120^{\circ}$ when a cylindrical rod is vertically placed in a liquid. If the same rod is placed horizontally in the liquid, then the angle of contact is (in $^{\circ}$)

When the temperature is increased,the angle of contact of a liquid:

If a water drop is kept between two glass plates,then its shape is

Explain the angle of contact in the context of intermolecular forces.