Contact angle is the angle that a drop of liquid makes as it meets the surface or interface of another phase, usually a solid
Grads or Gradians!
Meter is a unit of length. Radian is a unit of angle. They don't relate.
It is the angle between the a tangent to the liquid surface at the interface and the solid surface inside the liquid. For concave surfaces, it is acute .
degree and radian are juest unit measurment of angle
Angle is the inclination between two lines or planes which have one one common point of contact and it's unit is degree or radian
The contact angle is the angle in which the liquid interface meets the solid surface. The contact angle should be as small as possible to have an effective penetrant material.
the unit used to measure angle is degree. It is also measured in radians.
Usually an angle is measured in degrees or radians.
That would be an angle; the SI unit for angle is the radian. However, that is not the unit that is commonly used in this case.
the unit is called ( i think ) geomatry!? LOLHAHAHAHAHAHAHAHAHA
Angle of contact is the angle between a tangent to the liquid surface at the interface and the solid surface inside the liquid. For concave surfaces, it is acute . For convex surface , it is obtuse.