Source S₁ emits 10¹⁵ photons/s of wavelength 5000 Å. S₂ emits 1.02 × 10¹⁵ photons/s of wavelength 5100 Å. The ratio of powers P₂/P₁ is:
Physics · Photoelectric effect and dual nature · Photoelectric Effect & Einstein's Equation
Source S₁ emits 10¹⁵ photons/s of wavelength 5000 Å. S₂ emits 1.02 × 10¹⁵ photons/s of wavelength 5100 Å. The ratio of powers P₂/P₁ is:
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