Question: A light detector has an absorbing area of 2.00 x 10 -6 m 2? and absorbs 50% of the incident light, which is at wavelength

A light detector has an absorbing area of 2.00 x 10^-6 m^2?and absorbs 50% of the incident light, which is at wavelength 600nm. The detector faces an isotropic source, 12.0 m from the source. The energy E emitted by the source versus time r is given in Figure 38-24 (E_s?= 7.2nJ, t_s = 2.0s). At what rate ate photons absorbed by the detector?

E (nJ) E, t (s)

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