If wind blows from a stationary sounding object to a stationary lis...

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If wind blows from a stationary sounding object to a stationary listener, then the apparent frequency \( n^{\prime} \) and actual frequency \( n \) are related as
(a) \( \mathrm{n}^{\prime} \geq \mathrm{n} \)
(b) n \( ^{\prime}\mathrm{n} \)
(c) \( \mathrm{n}^{\prime}=\mathrm{n} \)
(d) \( \mathrm{n}^{\prime}\mathrm{n} \)
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