The bulk modulus and the density of water are greater than those of air. With this much of information, we can say that velocity of sound in air

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cannot be compared with its value in water. If B is the bulk modulus and ρ is the density, then the velocity of sound is given by: Velocity = $\sqrt$(B/\rho) If both B and ρ are greater, then we cannot compare 2B/2\rho = 3B/3\rho = B/\rho For proper comparison, we need numerical values.

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