The absolute threshold for hearing is arbitrarily defined as zero:

A. Wavelength

B. Decibels

C. Phonemes
D. Hertz
The absolute threshold for hearing is arbitrarily defined as zero: | Decibels | CSS, PMS, PPSC, FPSC, KPPSC, SPSC, ISSB and NTS Past Papers | Pakistan's Largest Online Past Papers Database

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