How will the fundamental frequency of a closed organ pipe be affected

1.	How will the fundamental frequency of a closed organ pipe be affected if instead of air, it is filled with a gas heavier than air?
Answer» Fundamental frequency of a closed organ pipe is, v = v - 4l, where v is the velocity of sound in air. When air is replaced by gas heavier than air, then velocity of sound in gas will decrease. (Because, v ∝ 1/√ρ, where ρ is the density of the gas) Hence, the fundamental frequency will also decrease.

How will the fundamental frequency of a closed organ pipe be affected if instead of air, it is filled with a gas heavier than air?

Answer»

Fundamental frequency of a closed organ pipe is, v = v - 4l, where v is the velocity of sound in air. When air is replaced by gas heavier than air, then velocity of sound in gas will decrease. (Because, v ∝ 1/√ρ, where ρ is the density of the gas)

Hence, the fundamental frequency will also decrease.

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How will the fundamental frequency of a closed organ pipe be affected if instead of air, it is filled with a gas heavier than air?

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