A body having room temperature ( T = 3 0 0 K ) absorbs a single photon of blue light ( = 0 .

 A body having room temperature $($T $=300$ K$)$ absorbs a single photon of  blue light $(\lambda$$=0\mathrm{.}5$m$)$ and slightly increases its energy as a result of the absorption$.$

$($a$)$ Find the energy increment E$.$

$($b$)$ Find the relative change of the statistical weight

 

 

 

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