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9th Class Science Sound Question Bank Sound Conceptive Objective Problems

  • question_answer
    If you hear a gunshot 2 seconds after it is fired, how far away from the gun are you? (speed of sound in air = 330 m/s)

    A)  330 m                  

    B)  335 m

    C)  320 m                                  

    D)  325 m

    Correct Answer: A

    Solution :

      \[t=\frac{2}{3}s=1s,\] \[v=330\text{ }m/s,\text{ }s=?\] We know, \[v=\frac{s}{t}\] \[\Rightarrow \] \[s=v\times t=330\times 1=330m\]      


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