A) Loudness and amplitude of sound
B) Loudness and pitch of sound
C) Amplitude and pitch of sound
D) Frequency of sound
Correct Answer: A
Solution :
The loudness of sound is expressed in a unit called decibel (dB). Loudness is also proportional to the square of the amplitude of vibration producing the sound. Thus, dB expresses both loudness and amplitude.You need to login to perform this action.
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