for hv>>kT how does exp(hv/kT) compare to 1?(adsbygoogle = window.adsbygoogle || []).push({});

I understand hv >>KT leads to an exponential fall in brightness but why did Planck introduce 1 in his equation.

and only for values hv<<kT can this exponential be expanded!

Thanks for any help!

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# Thick as a planck and making a spectra of myself

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