Power of sound has units of:

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Multiple Choice

Power of sound has units of:

Explanation:
Power is the rate at which energy is transferred, so its SI unit is the watt. Decibels (dB) are a logarithmic ratio used to compare quantities, not a unit of power itself. Similarly, dB/cm is also a ratio expression, not an absolute unit. Power per area describes intensity, which has units like watts per square meter or milliwatts per square centimeter. Since the quantity in question is power, the correct unit is watts.

Power is the rate at which energy is transferred, so its SI unit is the watt. Decibels (dB) are a logarithmic ratio used to compare quantities, not a unit of power itself. Similarly, dB/cm is also a ratio expression, not an absolute unit. Power per area describes intensity, which has units like watts per square meter or milliwatts per square centimeter. Since the quantity in question is power, the correct unit is watts.

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