A partially empty soda bottle will produce standing waves in the air above the l

Question

A partially empty soda bottle will produce standing waves in the air above the liquid if you blow across the neck of the bottle. There will be a displacement antinode at the neck and a node at the surface of the soda. What happens if you drink more soda and repeat the experiment?

a) no change in the sound produced
b) frequency of the sound will increase
c) frequency of the sound will decrease
d) wavelenth of the sound will increase
e) wavelength of the sound will decrease
f) pitch of the sound will increase
g) pitch of the sound will decrease

Which one and why???????

Explanation / Answer

a) no change in the sound produced.........because no chenge in medium

b) frequency of the sound will increase....more number of nodes and antinodes will forms



e) wavelength of the sound will decrease....because v=lamda*f.....to keep v constant.....lamda must be decreased since frequency is already incresed

f) pitch of the sound will increase....because frequency is proportional to pitch

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