Regarding photons entering and exiting an object, you may want to read Borrmann effect and Mossbauer effect .-- talk ) 06 : 40, 26 September 2013 ( UTC)
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He served as the Chairman of the " Asian Working Group on Solar Energy ", as the director of the International Solar Energy Society and as a member of the " International Commission on the Applications of Mossbauer Effect ".
मोबाइल