A source emitting sound of frequency 1000 Hz is moving towards an observer at speed v_s=0.90 v,(where v is the velocity of sound) . What frequency will be heard by the observer ?

A source emitting sound of frequency 1000 Hz is moving towards an obse

1.	A source emitting sound of frequency 1000 Hz is moving towards an observer at speed v_s=0.90 v,(where v is the velocity of sound) . What frequency will be heard by the observer ?
Answer» ANSWER :10,000 HZ