# Shake it to my Beats

A car is moving towards a wall with a velocity = $10 \text{ m/s}$. The car blows it's horn at a frequency of $240 \text{ Hz}$. A man is poking his head out of the car at that time too. If the speed of sound in air is $330 \text{ m/s}$, then what will be the frequency at which he will hear the beats?

Note:- Ignore the human hearing range.

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