The velocity of a sound wave at 27oC is 360..

Question 1 Report

The velocity of a sound wave at 27oC is 360ms-1. Its velocity at 127oC is

120√3 ms-1

240 ms-1

240√3 ms-1

720√3 ms-1

Answer Details

Velocity $α \sqrt{t e m p e r a t u r e}$

$\frac{V_{1}}{V_{2}} = \sqrt{\frac{T_{1}}{T_{2}}}$

therefore, $\frac{360}{V_{2}} = \sqrt{\frac{27 + 273}{127 + 273}}$

$V_{2} = 240 \sqrt{3}$ m/s