First slide
Superposition of waves
Question

In the arrangement shown in figure a rectangular pulse and a triangular pulse approaching each other both with the pulse speed  0.5 cm/sec . The resultant pulse at t=2sec .

Moderate
Solution

In 2 sec each pulse will travel a distance of 1 cm.

Two pulses overlap between 0 and 1 cm as shown in figure. So, A1 and A2  can be added as shown in figure.

 

 

 

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