In photon picture of light, intensity of radiation is defined as the energy transferred to a surfac unit area per unit time by the photons striking on the surface. Its SI unit is watt/m² (W m²). Class 12 Physics Chapter ...
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In photon picture of light, intensity of radiation is defined as the energy transferred to a surfac unit area per unit time by the photons striking on the surface. Its SI unit is watt/m² (W m²). Class 12 Physics Chapter ...