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A 30.0-cm-long wire having a mass of 10.0 g is fixed at the two ends and is vibrated in its fundamental mode. A 50.0-cm-long closed organ pipe, placed with its open end near the wire, is set up into resonance in its fundamental mode by the vibrating wire. Find the tension in the wire. Speed of sound in air = 340 m s-1.

Hrishant Goswami , 12 Years ago
Grade 10
anser 1 Answers
Jitender Pal
Sol. We know that f ∝√T According to the question f + ∆f ∝ √∆T + T ⇒ f + ∆f/f = √∆t + T/T ⇒ 1 + ∆f/f = (1 + ∆T/T)^1/2 = 1/2 ∆T/T + ….(neglecting other terms) ⇒ ∆f/f = (1/2) ∆T/T.
Last Activity: 12 Years ago
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