| A wave pulse on a string is generated by a quick movement of a hand and travels down the string toward the left (A). If the end of the string is free to move up and down at the wall, the pulse will come back down the string on the same side (C1). If the string is tied to the wall, the pulse will travel back along the string on the opposite side (C2). For the free end, the pulse will have twice the original amplitude at the turnaround point (B1); for the fixed end, the pulse will have no amplitude at the turnaround point (B2). |
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