A bat moving at 10 ms 1 towards a wall sends a sound signal

Last updated: 5/28/2023

A bat moving at 10 ms 1 towards a wall sends a sound signal of 8000 Hz towards it On reflection it hears a sound of frequency f The value of fin Hz is close to speed of sound 320 ms 1 8258 2 8516 3 8000 4 8424