Photoelectric EffectMedium
Question
The number of photons emitted in one second by a 100 watt red light source, assuming for simplicity the average wavelength for each photon is 694nm, is
Options
A.3.49 × 1020
B.4.49 × 1020
C.3.49 × 1018
D.4.49 × 1018
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