Question

To determine the surface tension of water by the method of ripples

Answer 1

A modification of the ripple method of measuring surface tension is described, in which a stationary wave pattern is formed between two vibrating styles. The pattern is projected by reflection on to a ground glass screen. Measurements of the decrease in the surface tension of tap water caused by contact with a bituminous paint are cited in illustration of the method.

Answer 2

Answer:

Explanation:

By setting up ripples on the surface of water, the surface tension can be measured. A small wire connected to a speaker cone driven by a function generator sets up the surface ripples, and a HeNe laser is angled at the water surface. The ripples act as a diffraction grating, yielding interference spots on a screen.