47 A train is moving with 30 m s and speed of sound in air

Last updated: 6/7/2023

47 A train is moving with 30 m s and speed of sound in air is 340 m s Another train is moving in opposite direction with speed 15 m s then apparent frequency genereted frequency by first train is 440 Hz and observer is in second train 1 458 Hz 2 450 Hz SPMT 04 08 4 490 Hz 3 503 Hz