Can anyone tell me how do u convert hertz to joules?
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LMarshallTags: None

Re: hertz to joules?
Originally posted by LMarshallCan anyone tell me how do u convert hertz to joules?
E = h*nu, or
E = h*c/lambda
where E is the photon energy
h = Plank's constant
nu is the frequency
lambda is wavelength.
In SI units, h is expressed in joules, although it is also commonly expressed in electron volts. Infrared radiation of approximately 1240 nm has an energy of 1 electron volt.
3 electron volts corresponds to blue light of 413 nm, and 4 eV is getting to be nasty UV of 310 nm. 5 eV will break O2 bonds and form ozone.

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