Doppler Effect of Sound Waves
 

Doppler Effect of Sound Waves problem 11


The siren of a moving police car emits a sound wave with a frequency of . A stationary observer hears sound of frequency . The speed of sound in the air is . What could be the speed and the direction of movement of the car?


  • directly away from the observer


  • directly towards the observer


  • directly away from the observer


  • directly towards from the observer


 

main author and content editor: Adebola Oluwadare