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[" A wave of frequency "100Hz" travels a...

[" A wave of frequency "100Hz" travels along a string towards its fixed end.When this wave travels back,after "],[" reflection,a node is formed at a distance of "10cm" from the fixed end.The speed of the wave (incident and reflected) "],[[" (A) "20m/s," (B) "40m/s," (C) "5m/s," (D) "10m/s]]

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