Current Attempt in Progress In the figure, sound waves A and B, both of wavelength A, are initially in phase and traveling rightward, as indicated by the two rays. Wave A is reflected from four surfaces but ends up traveling in its original direction. Wave B ends in that direction after reflecting from two surfaces. Let distance L in the figure be expressed as a multiple q of λ: L= qA. What are the (a) smallest and (b) second smallest values of q that put A and B exactly out of phase with each other after the reflections? B 1.8L (a) Number i (b) Number i 1.8L Unit Unit 11
Current Attempt in Progress In the figure, sound waves A and B, both of wavelength A, are initially in phase and traveling rightward, as indicated by the two rays. Wave A is reflected from four surfaces but ends up traveling in its original direction. Wave B ends in that direction after reflecting from two surfaces. Let distance L in the figure be expressed as a multiple q of λ: L= qA. What are the (a) smallest and (b) second smallest values of q that put A and B exactly out of phase with each other after the reflections? B 1.8L (a) Number i (b) Number i 1.8L Unit Unit 11
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Transcribed Image Text:Current Attempt in Progress
In the figure, sound waves A and B, both of wavelength A, are initially in phase and traveling rightward, as indicated by the two rays.
Wave A is reflected from four surfaces but ends up traveling in its original direction. Wave B ends in that direction after reflecting from
two surfaces. Let distance L in the figure be expressed as a multiple q of λ: L= qλ. What are the (a) smallest and (b) second smallest
values of q that put A and B exactly out of phase with each other after the reflections?
1.8L
B
1.8L
I
(a) Number i
(b) Number i
1.8L
Unit
Unit
#
=
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