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An observer is moving towards a wall at ...

An observer is moving towards a wall at `2ms^(-1)`. He hears a sound from source at some distance behind him directly as well as after reflection from the wall. Calculate the beat freqecny between these two sound, if the true frequency of the source is 680 Hz. Velocity of sound `-340m//s`.

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To solve the problem of calculating the beat frequency between the two sounds heard by the observer, we will follow these steps: ### Step 1: Identify the given values - True frequency of the source (N) = 680 Hz - Velocity of sound (V) = 340 m/s - Velocity of the observer (u) = 2 m/s ### Step 2: Calculate the apparent frequency of the sound coming directly from the source (N1) ...
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