Surface tension is defined as a force per unit:
ARadius
BLength
CVolume
DWeight
Answer & Solution
Correct answer: B. Length
1. The force acts along the line of the interface.
2. Dividing that force by the length of the line gives the quantity.
3. So surface tension is a force per unit length.
_Source: NCERT Class 11 Physics Part II, Chapter 10, Mechanical Properties of Fluids._
Related questions
Waterproofing agents are added to create a large:Detergents and dying substances act as:The pressure inside a spherical drop, against that outside, is:For a given volume the least surface area belongs to a:Free liquid drops and bubbles are spherical if we neglect:The hair of a paint brush forms a fine tip when it is:Sap and water rise up to the top of the leaves of a:Oil climbs up a cotton wick in spite of: