A girl swings a buzzer round her head on a string 1.5 m long.

The Question: A girl swings a buzzer round her head on a string 1.5 m long. If the buzzer emits a note of frequency 700 Hz and takes 0.5 s to make one revolution:

(a) what frequency is heard by the girl
(b) what frequency is heard by a friend standing a little over 10 m away
(c) what would happen to the observed frequency if the friend walked towards the girl?

Please indicate your views on the correct answer to question. Each of your comments will be evaluated by our moderators and correct answers will be shared.

Leave a Reply

Your email address will not be published.