Sound WavesHard
Question
The velocity of sound in air is 333 m/s. If the frequency of the fundamental tone is 333 Hz, the length of the open pipe to generate second harmonic is : -
Options
A.4.2 cm
B.4.2 m
C.4.2 mm
D.1.0 cm
Solution
v = fλ (λ/4 = L) ⇒ 336 = 20 × 4L ⇒ L = 4.2 m
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