F 74 A person P is 600 m away from the station when train is

Last updated: 6/8/2023

F 74 A person P is 600 m away from the station when train is approaching station with 72 km h it blows a whistle of frequency 800 Hz when 800 m away from the station Find the frequency heard by the person Speed of sound 340 ms a 800 Hz c 829 5 Hz 800 m b 839 5 Hz d 843 5 Hz S 600 m P