Physics, 10.07.2019 18:30, bobby3350

At a hypothetical plane surface normal to the unit vector n there is a plane isotropic source of radiation of strength sa (cm-2 s-1). in terms of sa, what is (a) the net flow rate jn and (b) the flux density ¢ at the plane?

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At a hypothetical plane surface normal to the unit vector n there is a plane isotropic source of rad...