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Q. The loudness and pitch of a sound note depends on

Jharkhand CECEJharkhand CECE 2009

Solution:

Loudness of sound note depends on intensity according to relation, $ L=10\,{{\log }_{10}}\left( \frac{I}{{{I}_{0.}}} \right) $ Here, $ {{I}_{0}} $ is the intensity of minimum audible sound. Pitch is the characteristics of sound that depends on frequency. It determines the shrillness and graveness of sound.