Loudness of sound is measured in units of
$(a)$. decibel $(dB)$
$(b)$. hertz $(Hz)$
$(c)$. metre $(m)$
$(d)$. metre/second$(m/s)$

Academic Physics NCERT Class 8

The loudness of sound is measured in $decibel(dB)$.

So, option $(a)$ is correct.

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Updated on: 10-Oct-2022

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