A piece of wire gauze can be made to lie on water because

Assessment: JAMB UTME - Physics - 1997 Subject: Physics

Question 1 Report

A piece of wire gauze can be made to lie on water because
Answer Details
The reason a piece of wire gauze can be made to lie on water is that the water surface has the effect of an elastic thin skin. This effect is due to the cohesive forces between the water molecules that cause them to stick together and form a surface tension. The wire gauze is able to rest on the water surface because it is not heavy enough to break the surface tension, allowing it to be supported by the surface of the water. Therefore, the correct option is "the water surface has the effect of an elastic thin skin".
Read lesson note on Fluid At Rest (WAEC)
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