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

  • question_answer
    The clothes are better cleaned with hot water than with cold water. Why?       

    Answer:

                    Surface tension decreases with the increase of temperature. Lesser the surface tension, more is the wetting (and hence the washing) power of water.


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