In a helium-filled chamber ( , ) a sound pulse is emitted toward a flat wall away

PHYSICS · Subjective · CBSE · Physics · Waves · Waves

Problem

In a helium-filled chamber (

\gamma = 1.67

M = 4.0\,\text{g\,mol}^{-1}

) a sound pulse is emitted toward a flat wall

8.0\,\text{m}

away. The echo is received

0.016\,\text{s}

after emission. Calculate the temperature of the helium in the chamber. (

R = 8.31\,\text{J\,mol}^{-1}\,\text{K}^{-1}

)