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For a sound coming from a point source, the amplitude of the sound is inversely
proportional to the distance. If the displacement amplitude of an air molecule in a sound
wave is 3.2x10 m at a point 1 m from the source, what would be the displacement
amplitude of the same sound when the distance increases to 4 m?
(Question 3)

For a sound coming from a point source the amplitude of the sound is inversely proportional to the distance If the displacement amplitude of an air molecule in class=

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Answer ) Sound level equation

The intensity of a sound wave is related to its amplitude squared by the following relationship: I=(Δp)22ρvw I = ( Δ p ) 2 2 ρ v w . Here Δp is the pressure variation or pressure amplitude (half the difference between the maximum and minimum pressure in the sound wave) in units of pascals (Pa) or N/m2.

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