Which of the following properties of sound is affected by change in air temperature ?

Amplitude

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Frequency

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Wavelength

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Intensity

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Solution

The correct option is B Frequency
the relation between temperature and speed of sound in air is
$\sqrt{\frac{T}{T_{0}}} = \frac{V_{T}}{V_{0}}$
so velocity will be affected by change in temperature so frequency will be also affected as frequency is directly proportional to the velocity of sound .

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