9) photosensitive surface is receiving light of wavelength 5000 ? (angstrom) at the rate of 10^-7 J/sec. find the number of photons recieved per second


Dear Student,
                    energy of one photon =hcλ=6.64×10-34×3.0×1085000×10-10=3.98×10-19Jso no of photon recieving per second  =10-73.98×10-19=2.5×1011
Regard

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