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

Chemistry · JEE Main · NTA ExamsAtomic 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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