Provided the amplitude is sufficiently great, the human ear can respond to longi

Question

Provided the amplitude is sufficiently great, the human ear can respond to longitudinal waves over a range of frequencies from about 20.0 Hz to about 20.0 kHz.

(a) If you were to mark the beginning of each complete wave pattern with a red dot for the long-wavelength sound and a blue dot for the short-wavelength sound, how far apart would the red dots be?
m

How far apart would the blue dots be?
cm

(b) In reality would adjacent dots in each set be far enough apart for you to easily measure their separation with a meterstick?

Yes or No     

(c) Suppose you repeated part (a) in water, where sound travels at 1480 m/s. How far apart would the red dots be?
m

How far apart would the blue dots be?
cm

Could you readily measure their separation with a meterstick?

Yes or No

Explanation / Answer

a) distance between red dots- 340/20 =17 m

Distance between blue dots = 340*100/20000 = 1.7 cm

b) yes

C)red dots will beapart by 1480/ 20 = 74m

And blue dots = 1480*100/20000= 7.4 cm

d) yes

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