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  • question_answer
    What is the effect of humidity on sound waves when humidity increases?

    A)  Speed of sound waves is more  

    B)  Speed of sound waves is less

    C)  Speed of sound waves remains same

    D)  Speed of sound waves becomes zero

    Correct Answer: A

    Solution :

     Velocity of sound= \[\sqrt{\frac{\gamma RT}{M}}\] When water vapour are present in air average molecular weight of air decreases and hence velocity increases.


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