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

  • question_answer
    What makes water-proof rain coat water-proof?

    Answer:

                    The angle of contact between water and the material of the raincoat is obtuse. So the rainy water does not wet the raincoat i.e., the raincoat is water-proof.


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