Question
Assume that $2 \times 10^{-17} \mathrm{~J}$ of light energy is needed by the interior of the human eye to see an object. How many photons of yellow light with $\lambda=595.2 \mathrm{~nm}$ are needed to generate this minimum energy?(a) 6(b) 30(c) 45(d) 60
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The energy of a photon is given by the equation $E = \frac{hc}{\lambda}$, where $h$ is Planck's constant, $c$ is the speed of light, and $\lambda$ is the wavelength of the light. Show more…
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