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JAMB Physics 2013 Paper

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Question : 22

Total: 43

What is the velocity of sound at 100 oC if the velocity of sound at 0 oC is 340ms -1?

497m^-1
440m^-1
397m^-1
240m^-1

Solution:

$V \propto \sqrt{T}$

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

Using the above formula, we get

$V_{2} \approx 397\,\mathrm{m/s}$

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