MCQ
Decibel is unit of
- AIntensity of light
- B$X-rays$ radiation capacity
- ✓Sound loudness
- DEnergy of radiation
✓
Answer
Correct option: C.
Sound loudness
c
Decibel $(dB)$, unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds
Decibel $(dB)$, unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds
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