Question

9. A whistle of frequency 500 Hz tied to the end of
string of length 1.2 m revolves at 40 m/s. A listener
standing large distance away in the plane of
rotation of whistle hears frequencies of what range?
(velocity of sound = 340 m/s)
(1) 447 to 567 Hz
(2) 180 to 380 Hz
(3) 568 to 880 Hz
(4) 220 to 384 Hz​

Answer 1

Answer:

3 is the right answer

hope you get this