A train, standin in a station yard, blows a whistle of frequency 400Hz in still air. The wind
Channel: Doubtnut
Date: 2020-08-02

A train, standin in a station yard, blows a whistle of frequency 400Hz in still air. The wind starts blowing in the direction from the yard to the station with a speed of 10m//s. Given that the speed sound ini still air is `34om//s,