15. The diagram below shows two pulses approaching each other in a uniform medium. Which diagram best represents the superposition of the two pulses? 5 cm 10. cm A. 15 cm B. 5 cm C. 7.5 cm D. 5 cm
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The wave pulses shown in Figure 3.25 travel at $1 \mathrm{cm} \mathrm{s}^{-1}$ and both have width $2 \mathrm{cm}$. The heights are indicated on the diagram. In each case, draw the shape of the resulting pulse according to the principle of superposition at times $t=0.5 \mathrm{s}, t=1.0 \mathrm{s}$ and $t=1.5 \mathrm{s}$. Take $t=0$ s to be the time when the pulses are about to meet each other.
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Two wave pulses approach each other, as shown in the diagram below: Which of the following four options best shows what the resultant wave will look like when these two pulses completely overlap?
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