(a) Explain what is meant by Fermi Level. Prove that fermi level in a…

Question

(a) Explain what is meant by Fermi Level. Prove that fermi level in an intrinsic semiconductor lies midway in the forbidden band i.e. $E_f = E_c + E_v/2$. (10)

(b) Give the theory of a plane transmission grating and show how it can be used to determine the wavelength of light. (10)

Related pages

• Fermi Levels — topic
• Applied Engineering Physics syllabus

More PYQs on Fermi Levels

• a) Explain the term "Fermi Level". Prove that Fermi level in an intrinsic semiconductor lies midway in the forbidden band i.e $E_f = \frac{E_c + E_v}{2}$. Disc…