Solid State Physics MCQs Question and Answer in Engineering Physics

A. E_A > E_B

B. E_A < E_B

C. E_A = E_B

D. E_A and E_B both depend on temperature

A. twice the number of unit cells

B. number of unit cells

C. half the number of unit cells

D. independent of the number of unit cells

A.

B.

C.

D.

A. 24

B. 36

C. 48

D. 96

A. 1 0 0

B. 1 1 0

C. 1 1 1

D. 2 0 0

A. $${E_F} = \left( {\frac{{{E_v} + {E_c}}}{2}} \right) - \frac{3}{4}{k_B}T\ln \left( {\frac{{{m_h}}}{{{m_e}}}} \right)$$

B. $${E_F} = \left( {\frac{{{k_B}T}}{2}} \right) + \frac{3}{4}\left( {{E_v} + {E_c}} \right)\ln \left( {\frac{{{m_h}}}{{{m_e}}}} \right)$$

C. $${E_F} = \left( {\frac{{{E_v} + {E_c}}}{2}} \right) + \frac{3}{4}{k_B}T\ln \left( {\frac{{{m_h}}}{{{m_e}}}} \right)$$

D. $${E_F} = \left( {\frac{{{k_B}T}}{2}} \right) - \frac{3}{4}\left( {{E_v} + {E_c}} \right)\ln \left( {\frac{{{m_h}}}{{{m_e}}}} \right)$$

A. zero

B. $$n\frac{h}{{2e}}$$

C. $$\frac{{nh}}{{4\pi e}}$$

D. $$\frac{{n{e^2}}}{{hc}}$$

A. Specific heat is discontinuous at transition temperature T_c

B. The resistivity falls sharply at T_c

C. It is diamagnetic below T_c

D. It is paramagnetic below T_c

A. (2, 1, 2)

B. (1, 1, 1)

C. (2, 0, 0)

D. (3, 1, 1)

A. 1 MeV

B. 1 keV

C. 1 eV

D. 1 meV