Sound WavesHard
Question
A tube, closed at one end and containing air, produces, when excited, the fundamental note of frequency 512 Hz. If the tube is opened at both ends the fundamental frequency that can be excited is (in Hz.) : -
Options
A.1024
B.512
C.256
D.128
Solution
v = f1λ1 = f2λ2 ⇒ 512 × 4L = f2 × 2L
f2 = 1024 Hz
f2 = 1024 Hz
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