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# Wavelength in Closed Pipe

APPH12-NOBYGN

A pipe that is closed at one end is $40\text{ cm}$ long and is sounding its fundamental frequency.

Which of the following values is the wavelength of the sound wave within the pipe?

A

$10 \text{ cm}$

B

$20 \text{ cm}$

C

$80 \text{ cm}$

D

$160 \text{ cm}$