Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

Does surface tension act tangentially to the surface of liquid or towards the interior of the liquid?
Asked by | 02 Sep, 2011, 02:48: PM
Expert Answer
Surface tension, represented by the symbol ? is defined as the force along a line of unit length, where the force is parallel to the surface but perpendicular to the line. 
The cohesive forces among the liquid molecules are responsible for this phenomenon of surface tension. In the bulk of the liquid, each molecule is pulled equally in every direction by neighboring liquid molecules, resulting in a net force of zero. The molecules at the surface do not have other molecules on all sides of them and therefore are pulled inwards. This creates some internal pressure and forces liquid surfaces to contract to the minimal area.
 
 
The imbalance of forces near the upper surface of a liquid has the effect of an elastic film stretched across the surface, thus, it acts like a membrane.
Answered by | 05 Sep, 2011, 09:55: PM
CBSE 11-science - Physics
Asked by raghuvanshisaumya461 | 03 Dec, 2021, 08:05: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by abhinavakrishna1009 | 31 Mar, 2021, 11:15: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by vanshraaj.ind | 13 Dec, 2020, 06:06: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
14
Asked by ashanihalchandani | 26 May, 2020, 09:11: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by mahimanaik290 | 10 May, 2020, 12:45: AM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by amitjaswal1974 | 18 Feb, 2020, 07:54: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by Limalcr043 | 03 Jul, 2019, 06:28: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by gargi.gholap | 26 Apr, 2019, 01:53: PM
ANSWERED BY EXPERT

Start your hassle free Education Franchisee and grow your business!

Know more
×