AP EAMCET Engineering 21 Apr 2019 Shift 2 Paper

A train approaching a railway crossing at a speed of 120 kmph sounds a whistle of frequency 576 Hz. when it is 288 m away from the crossing. The frequency heard by the observer standing on the road perpendicular to the track from the crossing at a distance of 384 m is
(Speed of sound in air = 340 ms−1)