2. Questions Bank
  3. 9th Class
  4. Science
  5. Sound

9th Class Science Sound Question Bank Sound Formative Objective Problems

  • question_answer
    The loudness of sound is ___ proportional to the density of the medium through which it propagates.

    A)  directly               

    B)  inversely

    C)  sometimes (a), sometimes (b)

    D)  none

    Correct Answer: A

    Solution :

      Not Available    


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