Question
The SI unit of intensity of sound is.........
Answer (Detailed Solution Below)
Option a: watt per metre square
The correct answer is watt per metre square
- The SI unit of intensity of sound is watt per metre square.
- Intensity of sound is sound power per unit of area.
- It indicates the flow of sound.
- The basic unit of intensity of sound is Decibel.
- Additional information:
- Joule per metre square is a unit of surface tension.Surface tension is the tendency of liquid surface at rest to shrink into the minimum surface area.
- Newton per metre square is a unit of pressure. In pressure physical force exerted on an object. Pressure is defined as force per unit area. The basic unit of pressure is pascal.
- Tesla per metre square is the unit of magnetic induction. In magnetic induction, a magnetic substance acquires magnetic properties temporarily due to the presence of a magnet close to it. The basic unit of magnetic induction is Tesla.
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