The conductivity of a semiconductor sharply increases when 400 nm ...

[kaid0807]

The conductivity of a semiconductor sharply increases when 400 nm (or shorter) wavelength light is shone upon it. This is consistent with what energy gap for this material?
 
  A)
 
  5.2 eV
  B)
 
  3.6 eV
  C)
 
  3.1 eV
  D)
 
  1.0 eV
  E)
 
  0.45 eV

Question 2

The hydraulic lift is an application of
 
  A)
 
  Bernoulli's principle.
  B)
 
  Pascal's principle.
  C)
 
  Archimedes' principle.
  D)
 
  Poiseuille's equation.
  E)
 
  Torricelli's equation.

[yotaSR5]

Answer to Question 1

C

Answer to Question 2

B