A string of length 20 cm and linear mass density
is fixed at both ends and is kept under a tension of 16 N. A wave pulse is produced at
near an end as shown in the figure and travels towards the other end.
Find the time (
) when the string will have the shape shown in the figure again?

Text Solution
Verified by ExpertsThe correct answer is:
A
The velocity of the waves,

Time is taken to reach the other end

Time is taken to see the pulse again in the original position
.
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