A tube long is closed at one end

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

A tube 0.85 m0.85\,\text{m} long is closed at one end. If the speed of sound in air is 340 m s−1340\,\text{m\,s}^{-1}, what is the fundamental frequency produced by the tube? (a) 200 Hz200\,\text{Hz} (b) 50 Hz50\,\text{Hz} (c) 100 Hz100\,\text{Hz} (d) 300 Hz300\,\text{Hz}

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