- #1
Douna2nd
- 20
- 0
Homework Statement
Two identical loud speakers placed at A and B 2m apart produce sound waves of frequency 440 HZ and with a velocity 320 m/sec a small microphone was used and placed at C along a perpendicular line from AB if there will be a destructive interference at C find the length of BC, please break the answer down for me and explain it in details,
Homework Equations
i guess v=f x wave length
path difference (m+0.5)wavelength
The Attempt at a Solution
I'll start by getting the wave length = velocity/frequency = 320/440= 8/11 but then what ? i don't see any way that could led me to length of BC
Last edited by a moderator: