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  3. 8th Class
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  5. Sound

8th Class Science Sound Question Bank Sound Summative Objective Problems

  • question_answer
    An object moving at a speed greater than that of sound is said to be moving at

    A)  ultrasonic speed             

    B)  sonic speed

    C)  infrasonic speed             

    D)  supersonic speed

    Correct Answer: D

    Solution :

      Not Available


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