Question

What is the intensity of sound wave?

• A. Amount of energy per unit area
• B. Amount of energy per unit time
• C. Amount of energy per unit area per unit time
• D. Amount of force per unit time

Answer 1

The correct option is C

Amount of energy per unit area per unit time

Intensity of a wave is defined as the power per unit area. It determines the loudness of a wave that we feel.