The expression for mean energy is given by ________ – McqOptions

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1.	The expression for mean energy is given by ________
A.	( frac{3}{5}NE_F )
B.	( frac{2}{5}NE_F )
C.	( frac{3}{5}E_F )
D.	( frac{2}{5}E_F )
Answer» B. ( frac{2}{5}NE_F )

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