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प्रश्न
Define the term 'intensity of radiation' in terms of photon picture of light.
Define intensity of radiation on the basis of photon picture of light.
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उत्तर १
The intensity of radiation is defined as the energy associated with photons emitted from a unit surface area in unit time
उत्तर २
Intensity of radiation is defined as the number of photons falling per unit area in unit time.
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