Categories > waves > Doppler Effect > A vehicle with a horn of frequency $n$ is moving with a velocity of 30 m/s in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency $n+{{n}_{1}}$. Then (if the sound velocity in air is 300 m/s)

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Question: A vehicle with a horn of frequency $n$ is moving with a velocity of 30 m/s in a direction perpendicular to the straight line joining the observer and the vehicle. The observer perceives the sound to have a frequency $n+{{n}_{1}}$. Then (if the sound velocity in air is 300 m/s)


1) ${{n}_{1}}=10\,n$
2) ${{n}_{1}}=0$
3) ${{n}_{1}}=0.1\,n$
4) ${{n}_{1}}=-0.1\,n$
Solution: Explanation: No Explanation
Doppler Effect

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