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[" grample "8.4" Light with an energy fl...

[" grample "8.4" Light with an energy flux of "18W/cm^(2)" falls on a non- "],[" reflecting surface at normal incidence.If "18W/cm^(2)" falls on a non- "],[20cm^(2)," find the average fonce exerted on the surface has an area of "],[" minute time span."],[" solution "]

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