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9th Class Science Sound Question Bank Sound HOTS Objective Problems

  • question_answer
    The crests and troughs of the sound waves produced through a piccolo (a kind of flute) are close to each other. The crests and troughs of the sound waves produced through a tuba (also a kind of flute) are far apart. If the amplitudes of the sound waves produced through a piccolo and a tuba are equal, then the sound produced by the

    A)  tuba is louder

    B)  piccolo is louder

    C)  tuba has a higher pitch

    D)  piccolo has a higher pitch

    Correct Answer: D

    Solution :

      Here, the student needs to examine the relationship between the frequency of a sound wave and its pitch. The pitch of a sound wave is directly proportional to its frequency. The crests and troughs of the sound waves produced through a piccolo are closer to each other, while the crests and troughs of the sound waves produced through a tuba are far apart. As a result, the frequency of the sound produced through a piccolo is more than that produced through a tuba. Hence, the sound produced through a piccolo has a higher pitch than that produced by a tuba. The correct answer is D.


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