If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Course: Class 11 Physics (India) > Unit 14

Lesson 5: Surface tension
Science
Class 11 Physics (India)
Mechanical properties of fluid
Surface tension
© 2024 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Surface tension and surface energy

Google Classroom
You might need: Calculator

Problem

A U-shaped frame has a 25 cm long sliding wire of negligible mass on the open side. It's dipped in a soap solution and placed vertically as shown below.
The sliding wire becomes stationary when a 2.0 g mass is hung from it.
What is the surface tension of the soap solution?
Choose 1 answer: