Speed of the sound, v, in a medium of elastic modulus E and density d is given by:
Correct answer: D. v2 = E/d
- A. V = E/d
- B. V = E*d
- C. v2 = E*d
- D. v2 = E/d
Explanation
Explanation:we can see that the speed of sound in a medium is given by the square root of the ratio of its elastic modulus to its density: v = sqrt(E/d)Taking the square of both sides gives:v^2 = E/dSo, the equation v^2 = E/d gives the speed of sound in a medium in terms of its elastic modulus and density.
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Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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