A crude approximation of voice production is to consider the breathing passages and mouth to be a resonating tube closed a one end. What is the fundamental frequency fi if the tube is 0.200 m long, by taking air temperature to be 37.0 °C? What would this frequency become if the person's breathing passage were filled with hydrogen instead of air? Assume the same temperature dependence for hydrogen as for air. ZH fı,hydrogen %3D Question Credit: OpenStax College Physics

A crude approximation of voice production is to consider the breathing passages and mouth to be a resonating tube closed a one end. What is the fundamental frequency fi if the tube is 0.200 m long, by taking air temperature to be 37.0 °C? What would this frequency become if the person's breathing passage were filled with hydrogen instead of air? Assume the same temperature dependence for hydrogen as for air. ZH fı,hydrogen %3D Question Credit: OpenStax College Physics