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11th Class Physics Mechanical Properties of Fluids / तरलों के यांत्रिक गुण Question Bank Mechanical Properties of Fluids Conceptual Problems

  • question_answer
    Why does a small piece of camphor dance about on the water surface?

    Answer:

                    Due to its irregular shape, the camphor piece dissolves more rapidly at some points than at others. Where it dissolves, the surface tension of water is reduced. As the force of surface tension reduces by different amounts at different points of the camphor piece, a resultant force acts on it which makes it dance about on water surface.


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