Question
Identify the unit of measuring intensity of sound?
Answer (Detailed Solution Below)
Option d: Decibels
The correct answer is Decibels
- Decibels is the unit of measuring intensity of sound.
- Intensity of sound is the sound waves per unit area in a direction perpendicular to that area.
- Its SI unit is watt per square metre.
- Additional information:
- Candela is the unit of luminous intensity.
- Ampere is the unit of current. One ampere is equal to the one coulomb moving past a point per second.
- Knots are units of speed. It is represented by kn.
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