A source of sound waves is moving at a constant speed directly towards a stationary observer.
The sound waves have a speed of $340 m s^{–1}$ and a frequency of $480 Hz$. The observer hears sound waves of frequency $650 Hz$.
What is the speed of the source?
$89 m s^{-1}$
2 )
$120 m s^{-1}$
3 )
$250 m s^{-1}$
4 )
$340 m s^{-1}$
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!