part a She now walks slowly toward one of the speakers. How far from the center

Question

part a
She now walks slowly toward one of the speakers. How far from the center must she walk before she first hears the sound reach a minimum intensity?
in cm?
part b

How far from the center must she walk before she first hears the sound maximally enhanced?
in cm? She now walks slowly toward one of the speakers. How far from the center must she walk before she first hears the sound reach a minimum intensity? in cm? part b
How far from the center must she walk before she first hears the sound maximally enhanced?
in cm? How far from the center must she walk before she first hears the sound maximally enhanced? in cm?

Explanation / Answer

a)First lets determine the wavelength of the sound waves

v=f

=v/f

=340/270

=1.2593m

Because they are 180 out of phase it will be a minimum exactly in the middle

d=0m

b)Because they are 180 out of phase, they need to travel /2 different lengths

This means the person must move /4

d=/4

d=1.2593/4

d=.3148m

Hope that helps

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