2. Questions Bank
  3. 8th Class
  4. Science
  5. Sound

8th Class Science Sound Question Bank Sound Formative Objective Problems

  • question_answer
    An echo returned in 3s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m/s?

    A)  520 m                  

    B)  515 m

    C)  530 m                  

    D)  513 m

    Correct Answer: D

    Solution :

      Not Available


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