Lowest frequency that produces an interference maximum

  • Thread starter L1988
  • Start date
  • #1
L1988
11
0

Homework Statement



A microphone is located on the line connecting two speakers that are 0.517 m apart and oscillating 180° out of phase. The microphone is 1.96 m from the midpoint of the two speakers. What is the lowest frequency that produces an interference maximum at the microphone's location?

What is the next lowest frequency that produces an interference maximum at the microphone's location?




Homework Equations



r2 -r1 = (n-0.5)(lambda)
lambda=v/f
v=343m/s

The Attempt at a Solution



r2 and r1 are the distances from the speaker
so r2 is .517/2 + 1.96 = 2.2185
and r1 is .517/2 + 2.2185 = 2.477

i know i have to solve for frequency so i plugged (343m/s)/f into the equation

but then i got stuck. what do i plug in for n and how i change n for the lowest frequency and the next lowest?
 

Answers and Replies

  • #2
L1988
11
0
nevermind, figured it out

DISREGARD THE QUESTION!
 
  • #3
ejbski6
1
0
Can you please tell me how to do this one? I've tried by using the equations but still can not figure it out.
Thanks!
 

Suggested for: Lowest frequency that produces an interference maximum

Replies
9
Views
249
  • Last Post
Replies
8
Views
1K
Replies
4
Views
270
  • Last Post
Replies
5
Views
125
Replies
5
Views
424
Replies
3
Views
460
  • Last Post
Replies
6
Views
273
  • Last Post
Replies
4
Views
297
Replies
2
Views
266
Top