It is said that a liquid rises or is depressed in a capillary due to the surface tension. If a liquid neither rises nor depresses in a capillary, can we conclude that the surface tension of the liquid is zero ?
A. Angle of contact is `0^(0)`
B. Angle of contact may be `90^(@)`
C. Surface tension of the liquid must be zero
D. None of these
A. Angle of contact is `0^(0)`
B. Angle of contact may be `90^(@)`
C. Surface tension of the liquid must be zero
D. None of these
Correct Answer – B