What is intensity? Give its meaning
In physics, radiant energy intensity is defined as the amount of energy transferred per unit area measured on a plane perpendicular to the energy's propagation direction. It is measured in watts per square metre (W/m2) in the SI system, or kilograms per square metre (kgs3) in base units. When it comes to waves like acoustic waves (sound) or electromagnetic waves like light or radio waves, intensity refers to the average power transfer across one period of the wave. Intensity can be used in a variety of situations where energy is delivered. For example, the intensity of the kinetic energy carried by drops of water from a garden sprinkler may be calculated. The term "intensity" is not equivalent with "strength," "amplitude," "magnitude," or "level," as it is commonly used in casual conversation.
Define the intensity
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