A string of length 1 m and mass 10 gm is tightly clamped at its ends. The tension in the string is 4 N. Identical wave pulses are produced at one end at equal intervals of time t. What is the minimum value of t (in sec.) which allows a constructive interference between successive pulses?

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answer is 00000.10.

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Detailed Solution

v=Tμ=4×110×10−3=20m/st=2ℓv=0.1sec

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