If f(E) is Fermi dirac distribution function, then 1 – f(E) is the p – McqOptions

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1.	If f(E) is Fermi dirac distribution function, then 1 – f(E) is the probability:(Where Ef is Fermi level)
A.	that a state is empty below Ef
B.	that a state is filled below Ef
C.	that a state is empty above Ef
D.	that a state is filled above Ef
Answer» B. that a state is filled below Ef

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