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## Homework Statement

Two speakers 14 m apart are emitting tones at a frequency of 1020 Hz. What is the

closest distance (in m) from one speaker, along the line connecting the speakers, at

which the sound intensity be will be zero?

## Homework Equations

V= Lambda x f

## The Attempt at a Solution

i tried this so far, but i dont have the correct answer. (it is .5 m)

l________________________________l

14m

l______l

x (minimum distance x, not known)

L2-L1= 14-x-(x)

Delta L= 14-2x

Lambda =v/f

lambda = (343 m/s) / 1020 Hz

lambda= .33627 m.

i dont know what to do now. Please help me