A car moves towards a hill with speed vc It blows a horn of

Last updated: 6/5/2023

A car moves towards a hill with speed vc It blows a horn of frequency f which is heard by an observer following the car with speed vo The speed of sound in air is v The frequency of sound reaching the hill is The wavelength of sound reaching the hill is V V VC V Vc f The wavelength of sound of horn directly reaching the observer is The beat frequency observed by the observer is 2vc v Vo f v v V Vc f