Question
Physics Question on mechanical properties of fluid
Consider a bowl filled with water on which some black pepper powder have been sprinkled uniformly. Now, a drop of liquid soap is added at the centre of the surface of water. The picture of the surface immediately after this will look like
A
B
C
D
Answer
Explanation
Solution
Soap solution lowers the surface tension of water.
So, water surface is punctured and is pulled back near circumference of vessel due to surface tension.