What is the de Broglie wavelength (m) of a 25-g object moving at ...

[waynest]

What is the de Broglie wavelength (m) of a 25-g object moving at a speed of 5.0 m/s?
 
  A) 1.9  1032 m
  B) 5.3  10-33 m
  C) 6.6  10-36 m
  D) 3.32  10-36 m
  E) 3.02  1045 m

Question 2

Which will have a larger band gap: GaN, GaP, GaAs, or GaSb?
 
  A) GaN
  B) GaP
  C) GaAs
  D) GaSb
  E) All choices have identical band gaps.

[tranoy]

Answer to Question 1

B

Answer to Question 2

A