A car moving at 40 km/hr passes a factory as a siren of frequency 500 Hz is to be sounded. What does the frequency appear to the driver of the car before and after passing by the factory ? [Speed of sound in air = 340 m/s]
A car moving at 40 km/hr passes a factory as a siren of frequency 500 Hz is to be sounded. What does the frequency appear to the driver of the car before and after passing by the factory ? [Speed of sound in air = 340 m/s]
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![A car moving at 40 km/hr passes a
factory as a siren of frequency 500 Hz is
sounded. What does the frequency appear to be
to the driver of the car before and after passing
by the factory ? [Speed of sound in air
= 340 m/s]
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Transcribed Image Text:A car moving at 40 km/hr passes a
factory as a siren of frequency 500 Hz is
sounded. What does the frequency appear to be
to the driver of the car before and after passing
by the factory ? [Speed of sound in air
= 340 m/s]
%3D
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