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Two strings with linear mass densities `mu_(1)=0.1kg//m` and `mu_(2)=0.3kg//m` are joined seamlesly. They are under tension of `20N`. A travelling wave of triangular shape is moving from lighter to heavier string.A. The reflection coefficient at interface is zeroB. The reflection coefficient at interface is `2-sqrt(3)`C. The transmission coefficient at interface is 1D. The transmission coefficient at inerface is `sqrt(3)-1` |
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Answer» Correct Answer - B::D `V_(1)=sqrt(T/(mu_(1)))=10sqrt(2)` `V_(2)=sqrt(T/(mu_(2)))=(10sqrt(2))/(sqrt(3))` Reflection coeffcient `R=(V_(2)-V_(1))/(V_(1)+V_(2))=2-sqrt(3)` Transmission coefficient `T=(2V_(2))/(V_(1)+V_(2))=sqrt(3)-1` |
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