Two stereo speakers mounted 4.52 m apart on a wall emit identical in-phase sound waves. You are standing at the opposite wall of the room at

Question

Two stereo speakers mounted 4.52 m apart on a wall emit identical in-phase sound waves. You are standing at the opposite wall of the room at a point directly between the two speakers. You walk 2.11 m parallel to the wall, to a location where you first notice that the sound intensity drops to zero.

If the wall along which you are walking is 10.7 m from the wall with the speakers, what is the wavelength of the sound waves?

a) 2.1 m

b) 2.9 m

c) 0.9 m

d) 1.7 m

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RobertKer 6 months 2021-07-19T00:26:02+00:00 1 Answers 7 views 0

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    2021-07-19T00:27:55+00:00

    the answer is option c) 0.9 m

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