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Assume I generate $n$ photons emmited by the sun. They have wavelengths between 390 and 750 nanometers. How do I find out the number of photons that correspond to each wavelength:

How many of my $n$ photons should have a wavelength $\lambda$ with $\lambda \in [390, 750]$?

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  • $\begingroup$ Are you familiar with a Planck spectrum? $\endgroup$ – pela Aug 6 at 11:28
  • $\begingroup$ @pela No, sadly I am not. $\endgroup$ – Jhonny007 Aug 6 at 11:29
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    $\begingroup$ A Planck spectrum is the spectrum emitted by an object due to its temperature (as opposed to e.g. line emission), i.e. by a "blackbody". The answer to your question is the integral from 390 to 750 (expressed as number of photons rather than energy), divided by the total integral. I suggest you take a read at the linked article and come back if you have more questions :) $\endgroup$ – pela Aug 6 at 11:35
  • $\begingroup$ Thank you, I will do that. $\endgroup$ – Jhonny007 Aug 6 at 11:37

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