Show that the quantity has the dimensions of length, where the surface tension has units of

Show that the quantity 

has the dimensions of length, where the surface tension σ has units of energy per unit area. Look up the surface tension of water and evaluate l for water. When a small drop of water is placed on a porcelain surface it forms a round bead, but as the drop gets bigger, it flattens out. Explain what l has to do with this. Does the value of l agree with your experience?

Transcribed Image Text:

σΙpg ||