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  4. A wave pulse on a string has the dimension shown in the diagram. The wave speed is v = 1 cm s- 1 . If point O is a free end. The shape of the wave at time t = 3 s is <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-qdqnbuyj8aifol00.jpg />

Q. A wave pulse on a string has the dimension shown in the diagram. The wave speed is . If point is a free end. The shape of the wave at time is

Question

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Solution:

Time taken for maxima to reach the end is 3 sec and at it's free end the disturbance will add up and get double there.