A bus is moving with a velocity 4 m/s towards a huge wall. The driver sounds horn of frequency 200 Hz. The beat frequency heard by passanger of the bus will be nearly (the speed of sound in air is 342 m/s)

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Dopplers Effect

Energy in Prograssive Wave

Reflection Refraction and Superposition of Wave

Question

A bus is moving with a velocity 4 m/s towards a huge wall. The driver sounds horn of frequency 200 Hz. The beat frequency heard by passanger of the bus will be nearly (the speed of sound in air is 342 m/s)

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$F_{ob} = \frac{342 + 4}{342 - 4} = 204 .73$

Beat frequency = 204.73 – 2005