Answer to Question #88447 in Molecular Physics | Thermodynamics for gc

Question

An audio speaker producing a steady sound at an outdoor concert is 18 ft away from you. If you move to a position where the speaker is 81 ft distant, by what factor will the amplitude of the sound change?
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Answer 1

Amplitude is inversely related to distance from the source of generation

Thus

Amplitude is proportional to 1/x

At first instance,

Amplitude is proportional to 1/18

At other instance

Amplitude is proportional to 1/81

Thus

Initial amplitude/Final amplitude=81/18

=9/2