Qstnid -I-2-is It Always True That For Two Sources Of Equal Intensity, The Number Of Photons Emitted In A Given Time Are Equal? - 42: Photoelectric Effect And Wave Particle Duality

with Solutions -

#2
Is it always true that for two sources of equal intensity, the number of photons emitted in a given time are equal?
Ans : Let the source's area be A, and intensity of the source be I. The energy of each emitted photonis E. Then, the number of photons emitted in a given time will be `` n=\frac{I}{AE}``.
If the areas of the sources and the wavelengths of light emitted by the two sources are different, then the number of photons emitted will be different.
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