Question

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What two units are used to measure the frequency and amplitude of a sound wave?

A. Hertz is a measure of frequency, and a decibel is a measure of amplitude.
B. A decibel is a measure of frequency, and hertz is a measure of amplitude.
C. The quantization is a measure of frequency, and sampling is a measure of amplitude.
D. Sampling is a measure of frequency, and the quantization is a measure of amplitude.

Answer 1

I know frequency unit is hertz but I don’t know about sound wave

Answer 2

My guess would be B and D.