Question: Would you please solve it real quick, that will be helpful and appreciated. Thank you. I will give you a good feedback too. 14) A

Would you please solve it real quick, that will be helpful and appreciated. Thank you. I will give you a good feedback too.

14) A speaker with a frequency of 900 Hz is aimed at the floor 1.5 m below. There is a microphone 0.6 m above the floor as shown. Sound from the speaker goes right into the microphone and some sound reflects off of the floor then eventually goes into the microphone as well. Since sound is a longitudinal wave, the reflected sound is not flipped on reflection. Use 343 m/s for the speed of sound. (a) What is the total phase difference Ao between the direct sound and the reflected sound at the microphone? (b) At which new height h above the floor should the microphone be lowered to detect destructive interference? speaker 1 5m microphone h 0.6m floor

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