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Physical Chemistry

Suppose 10–17J of energy is needed by the interior of human eye to see an object. How many photons of green light ( = 550 nm) are needed to generate this minimum amount of energy?

Profile image of Vaishnavi Dudem
7 Years agoGrade
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1 Answer

Profile image of Arun
7 Years ago

Energy = Planck's constant × speed of photons × no. of photons/wave length(in nm)

10^-17=n×6.626×10^-34×3×10^8/550

n=28 photons