Question

The average energy of an electron in a specific metal at 0 K is 2.9 eV. Calculate the value of the Fermi energy in a specific metal. a) 5.51 eV b) 2.44 eV c) 4.83 eV d) 2.83 eV.​

Answer 1

Given info : The average energy of an electron in a specific metal at 0 K is 2.9 eV.

To find : the value of Fermi energy in the specific metal is ...

solution : relation between average energy at 0 K and Fermi energy is given by,

<E> = 3/5 Ef

where <E> is average energy at 0K and Ef is Fermi energy.

here <E> = 2.9 eV

so, 2.9 = 3/5 Ef

⇒Ef = 5/3 × 2.9 = 4.83 eV

Therefore the Fermi energy in the specific metal is 4.83 eV. I.e., option (c) 4.83 eV

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Answer 2

Answer:

Explanation:

2.44 eV