What will be the photon flux incident on an unit square metre of the Earth's surface, if…

Chemistry · JEE Main · NTA Exams — Atomic Structure

What will be the photon flux incident on an unit square metre of the Earth's surface, if the intensity of light perpendicular to the Earth's surface is 1400 W/m2 and the mean wavelength of Sunlight is \(6000\) ?
  1. \(3.12 \times 10^{24} \frac{\text { photons }}{\text { second }}\)
  2. \(4.22 \times 10^{21} \frac{\text { photons }}{\text { second }}\)
  3. \(2.22 \times 10^{21} \frac{\text { photons }}{\text { second }}\)
  4. \(5.00 \times 10^{19} \frac{\text { photons }}{\text { second }}\)

Answer

(C) 2.22 10^ 21 photons second

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