A parallel beam of 500 keV photons normally incident on a sheet of lead 8 mm thick. The rate of energy transmission is 4 ^ 10^4 MeV/s. (a) What fraction of the incident photon energy absorbed in the
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A parallel beam of 500 keV photons normally incident on a sheet of lead 8 mm thick. The rate of energy transmission is 4 ^ 10^4 MeV/s.
(a) What fraction of the incident photon energy absorbed in the sheet
(b) How many photons per second are incident on the sheet?
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Order Paper Now(c) What fraction of the transmitted energy due to uncollide photons?
