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Velocity of sound (Cs) = √γP / ρ

1. √γP / ρ
2. √3P / ρ
3. √γ / √3
4. √γ / ρ

Correct answer: √γP / ρ

Solution

The velocity of sound in a medium is given by the formula Cs = √(γP / ρ), where γ is the adiabatic index, P is the pressure, and ρ is the density of the medium. This matches option A.

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