Which parameters determine the propagation speed of sound in a medium?

Which parameters determine the propagation speed of sound in a medium?
A . Frequency and impedance
B . Amplitude and impedance
C . Intensity and density
D . Elasticity and density

Answer: D

Explanation:

The propagation speed of sound in a medium is determined by the medium’s elasticity and density. Elasticity refers to the ability of the medium to return to its original shape after deformation, while is the density.

Reference: ARDMS Sonography Principles and Instrumentation (SPI) Exam Study Guide "Diagnostic Ultrasound: Principles and Instruments" by Frederick W. Kremkau

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