The eye can detect 5 × 10^4 photons (m^2/s) of green light ( λ = 5000 A ) , whole ear can detect 10^−13 Wm^2 . As a power detector, which is more sensitive and by what factor? The eye can detect 5 × 10^4 photons (m^2/s) of green light ( λ = 5000 A [...]