Asked by Greg

A heat lamp produces 22.5 watts of power at a wavelength of 6.0 {\rm \mu m}.

How many photons are emitted per second? 1{watt}} = 1 J/s

i got 7.02*10^20 but that is incorrect, can you help?
Answered by DrBob222
We may be able to help if you let us in on what {\rm \mu m} stands for.
Answered by Greg
it stands for Mu/meter
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