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A-train-travelling-at-30m-s-approaching-a-stationary-observer-emits-a-tone-at-a-frequency-of-480Hz-If-the-speed-of-sound-is-330m-s-determine-the-frequency-of-the-note-the-observer-hears-




Question Number 35881 by NECx last updated on 25/May/18
A train travelling at 30m/s ,  approaching a stationary observer  emits a tone at a frequency of 480Hz.  If the speed of sound is 330m/s,  determine the frequency of the  note the observer hears.
Atraintravellingat30m/s,approachingastationaryobserveremitsatoneatafrequencyof480Hz.Ifthespeedofsoundis330m/s,determinethefrequencyofthenotetheobserverhears.
Commented by tanmay.chaudhury50@gmail.com last updated on 25/May/18
Answered by tanmay.chaudhury50@gmail.com last updated on 25/May/18
f^′ =f(v/(v−v_s ))=480×((330)/(330−30))  f′=((480×330)/(300))  =48×11=528
f=fvvvs=480×33033030f=480×330300=48×11=528
Commented by NECx last updated on 28/May/18
Thank you Tanmay sir
ThankyouTanmaysir

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