If the photon detector receives a total of 3.15 J from the radiation of 600 nm, the number of photons received by the detector would be:
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA 25-watt bulb emits monochromatic yellow light with a wave length of 0.57µm. The rate of emission of quanta per second would be :
1. 7.17 × 10–19 s–1
2. 4.13 × 1016 s–1
3 . 7.17 × 1019 s–1
4 . 1.26 × 1020 s–1
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology