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hydrocodone
Homework Statement
Two in-phase loudspeakers emit identical 1000 Hz sound waves along the x-axis. What distance should one speaker be placed behind the other for the sound to have an amplitude 1.60 times that of each speaker alone?
Homework Equations
None given, but I assume:
v=f[tex]\lambda[/tex]
A = 2asin(kx)
The Attempt at a Solution
1.6a = 2asin(kx)
Found k=(2pi)/wavelength = (2pi/0.343)
using v = 343 m/s
arcsin(0.8)=18.318x
x = 0.0506m
But this answer is wrong. Help?
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