Question

The surface tension acts ...
a) perpendicular to the surface and vertically upwards
b) perpendicular to the surface and vertically into the liquid
c) tangential to the surface
d) only at the liquied-solid interface​

Answer 1

Answer:

option A) is correct

Explanation:

i.e . Surface tension acts perpendicular to the surface and vertically downward on a surface

Answer 2

C. The surface tension acts tangential to the surface.

• Surface tension, a tendency of any liquid surface showed by acting as if was any stretched elastic membrane.
• Such tendencies can be observed in mostly spherical shaped small drops of soap bubbles and liquids.
• Insects can stand on surface of liquids due to such tendencies.
• Even razor blades can also be supported by the surface tension of water.
• The surface tension force is tangential to the surface of liquids whereas it acts perpendicular to the surface because of the air pressure.
• Therefore, option c is correct that surface tension acts tangential to the surface.