12 Two tuning forks vibrating at 340 Hz each move relative

Last updated: 6/4/2023

12 Two tuning forks vibrating at 340 Hz each move relative to a stationary observer one away from the observer and the other towards the observer with the same speed along the same line joining the two forks and observer The observer hears beats of frequency 3 Hz The speed of the tuning forks is A 1 5 m s B 2 5 m s C 3 5 m s D 4 5 m s