When using the lens equation, a negative value as the solution for d baseline i indicates that the image is
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Answer:
Lowest frequency that gives the minimum signal is 343 Hz
lowet frequency for maximum signal 686 Hz
Explanation:
D_1 = 2.00 m
D _2 =3.75 m
Δx =
=
= 0.5 m
for minimum distructive interference, the path difference is
Δx =
for minimum n = 0
= 2*0.5 = 1 m
lowest frequency f =
where c is speed of sound in air 343 m/s
b) lowet frequency for maximum signal
for minimum CONSTRUCTIVE interference, the path difference is
Δx =
for minimum n = 1
= 0.5 m
lowest frequency f =
f =