A pipe closed at one end is 1.0m long. The air in the pipe is...

WAEC 1992

A pipe closed at one end is 1.0m long. The air in the pipe is set into vibration and a fundamental note of frequency 85Hz is produced. Calculate the velocity of sound in the air. (Neglect end correction).

A. 340.0ms^-1
B. 33Oms^-1
C. 170ms^-1
D. 85.0ms^-1
E. 42.5ms^-1

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Correct Answer: Option A

Explanation

L = λ/4; λ= 4 = 4m
v = fλ = 85 x 4 = 340ms^-1

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A pipe closed at one end is 1.0m long. The air in the pipe is...

Correct Answer: Option A

Explanation

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