Question
An ambulance with a 200-Hz siren is moving at 30.0 m/s. Take the speed of sound...
An ambulance with a 200-Hz siren is moving at 30.0 m/s. Take the speed of sound to be 340 m/s. a) What frequencies are observed by a stationary person standing on the sidewalk as the ambulance approaches and after it passes? b) Is this Doppler shift real or just a sensory illusion?
Homework Answers
Answer #1
a) Frequency observed by a stationary observer when ambulence approaches to him,
when it passes,
================================================
b) Not its a real phenomena. It happens due to the shift of source towards or away from the observer or vice versa.
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