Physics (AS & A Level) · Feb / March 2021 · Paper 22 · Question 5

A source of sound is attached to a rope and then swung at a constant speed in a horizontal circle, as illustrated in Fig. 5.1. rope horizontal circular path of source, radius 2.4 m source of sound distant observer Fig. 5.1 (not to scale) The source moves with a speed of 12.0 m s−1 and emits sound of frequency 951 Hz. The speed of the sound in the air is 330 m s−1. An observer, standing a very long distance away from the source, hears the sound.

Read automatically from the paper; the printed page above is exact.