11th Class Physics Waves / तरंगे Question Bank Waves Conceptual Problems

  • question_answer
    Sound travels faster on a rainy day than on a dry day. Why?

    Answer:

                    The amount of water vapours present in the atmosphere is much higher on a rainy day than on a dry day. As the water vapours are lighter than dry air, hence density of wet air becomes less than that of dry air. Now, because the speed of sound is inversely proportional to the square root of the density, hence sound travels faster on a rainy day than on a dry day.


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