A train, standing in a station yard, blows a whistle of frequency 400 Hz in still air. The wind starts blowing in the direction from the yard to the station with a speed of 10 m s –1 . Which of the following statements is correct?
(Speed of sound in still air is 340 m s –1 )
Text Solution
Verified by ExpertsA
Here, 
As there is no relative motions between the source and observer, therefore the frequency of sound remains unchanged. Hence, the frequency of sound as heard by an observer standing on the platform is 
As the wind is blowing in the directions of sound therefore, for an observer standing on platform.
Speed of the sound
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