Question

what is intensity????​

Answer 1

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• The quality or condition of being intense. great energy, strength, concentration, vehemence, etc., as of activity, thought, or feeling: He went at the job with great intensity. a high or extreme degree, as of cold or heat. the degree or extent to which something is intense.

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Answer 2

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=> Intensity of radiant energy is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.

=> In the SI system, it has units watts per square metre.