Assertion (A): If E is available energy state eV and EF is Fermi level, then probability of energy state E being occupied = 0.5. Reason (R):

Assertion (A): If E is available energy state eV and EF is Fermi level, then probability of energy state E being occupied = 0.5.

Reason (R):

[A].	Both A and R are true and R is correct explanation of A
[B].	Both A and R are true but R is not correct explanation of A
[C].	A is true but R is false
[D].	A is false but R is true

Answer: Option B

Explanation:

E = EF, f(E) = 0.5.