CBSE Class 11-science Answered
A wave pulse is travelling on a string of linear mass density 10g /cm under a tension of 1 kg wt calculate the time taken by the pulse to travel a distance of 50 cm on the string. Given g =10m/s
Asked by drbharatkaila | 13 Feb, 2019, 07:36: PM
Expert Answer
Speed v of wave pulse in a stretched string, v = 
, where T is Tension in the string, μ is mass per unit length
, where T is Tension in the string, μ is mass per unit lengthT = 1 kg-wt = 1×10 N, μ = 10 g/cm = 1 kg/m
Hence speed of wave in string = 
Time taken by the pulse to travel a distance 50 cm = 0.5/3.16 ≈ 0.16 s
Answered by Thiyagarajan K | 13 Feb, 2019, 09:00: PM
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