Question

What are the two characteristics of sound? On what factor do they depend.

Answer 1

(i) Pitch (ii) Quality (iii) Loudness. (i) Pitch depends on the frequency of the sound waves produced by the source. (ii) Quality (or Timbre) of the sound depends on wave form. (iii) Loudness depends as the following: (a) Loudness is directly proportional to the square of the amplitude. (b) Loudness is inversely proportional to the square of the distance. (c) Loudness depends on the surface area of the vibrating body. (d) Loudness depends on the density of the medium. (e) Loudness depends on the presence of resonant bodies.



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