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Wave Pulse Conceptual

  1. Nov 27, 2007 #1
    1. The problem statement, all variables and given/known data
    Two springs are connected, one is a heavy spring and the other is a light spring. A pulse is travelling down spring A, towards a junction with spring B. Which of the following statements are correct/incorrect.

    A. If spring A is the heavy spring then the transmitted pulse will travel slower than reflected pulse.
    B. The only case in which there will be no reflected pulse is when the springs are identical.
    C. If spring A is the heavy spring then the reflected pulse will be inverted.
    D. If spring A is the light spring then the transmitted pulse will not be inverted.
    E. If spring A is the light spring then the reflected pulse will not be inverted.


    3. The attempt at a solution
    A. Correct
    B. Correct
    C. Incorrect
    D. Correct
    E. Incorrect
     
  2. jcsd
  3. Nov 27, 2007 #2

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    By lighter, I assume mass/unit length is lesser. Does your answer to A tally with the formula for the speed of sound? The tension in both springs is the same.
     
  4. Nov 27, 2007 #3
    Ohh yea no that should be incorrect. Are the rest of them right?
     
  5. Nov 27, 2007 #4

    Shooting Star

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    Seems to be all right.
     
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