The rayl is the unit of which property?

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Multiple Choice

The rayl is the unit of which property?

Explanation:
The Rayl measures acoustic impedance, which is the opposition a medium offers to the propagation of sound. It is defined as Z = ρ c, the product of density (ρ) and the speed of sound (c) in the medium, and the Rayl itself equals Pa·s/m. For typical soft tissue, ρ is about 1000 kg/m^3 and c about 1540 m/s, giving Z around 1.5 × 10^6 Pa·s/m, or 1.5 MRayls. This is distinct from intensity (energy per area per time), reflectance (the ratio of reflected to incident intensity), or density (mass per volume).

The Rayl measures acoustic impedance, which is the opposition a medium offers to the propagation of sound. It is defined as Z = ρ c, the product of density (ρ) and the speed of sound (c) in the medium, and the Rayl itself equals Pa·s/m. For typical soft tissue, ρ is about 1000 kg/m^3 and c about 1540 m/s, giving Z around 1.5 × 10^6 Pa·s/m, or 1.5 MRayls. This is distinct from intensity (energy per area per time), reflectance (the ratio of reflected to incident intensity), or density (mass per volume).

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