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?
2 answers
We may be able to help if you let us in on what {\rm \mu m} stands for.
it stands for Mu/meter