Q66
What is the unit for measuring the amplitude of a sound?
A.
Decibel
AnswerB.
Coulomb
C.
Hum
D.
Cycles
Answer: Option A
Solution
Answer: Option A
Solution:
Amplitude measures how forceful the wave is. It is measured in decibels or dBA of sound pressure. 0 dBA is the softest level that a person can hear. Normal speaking voices are around 65 dBA.