9th Class Science Sample Paper Science Olympiad Model Test Paper-5

  • question_answer
    Which one of the following statements is incorrect about the pitch of a sound?

    A) Pitch of a sound depends upon the frequency of a vibrating object

    B) Higher frequency produces shrill sound and lower frequency produces bass or flat sound

    C) Small lengths of vibrating air columns produce high pitched sound and vice-versa

    D) Pitch of sound decreases with the decrease in thickness or the length of vibrating wires

    E) None of these

    Correct Answer: D


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