Two liquids A and B have θ A and θ B as contact angles in a capillary tube. If K = cos θ A / cos θ B . then identify the correct statement:

Question

Two liquids A and B have θ A ​ and θ B ​ as contact angles in a capillary tube. If K = cos θ A ​ / cos θ B ​ . then identify the correct statement:

TestHub · Accepted Answer

k = c o s θ B ​ c o s θ A ​ ​ It is negative when cos θ A ​ & cos θ B ​ are of opposite sign. so option (3)

Physics - Fluid Question with Solution | TestHub